diff --git a/docs/release-notes/.FSharp.Compiler.Service/11.0.0.md b/docs/release-notes/.FSharp.Compiler.Service/11.0.0.md
index 7cc15f46c9e..03b197f995c 100644
--- a/docs/release-notes/.FSharp.Compiler.Service/11.0.0.md
+++ b/docs/release-notes/.FSharp.Compiler.Service/11.0.0.md
@@ -26,5 +26,9 @@
 * Parallel compilation features: ref resolution, graph based checking, ILXGen and optimization enabled by default ([PR #18998](https://github.com/dotnet/fsharp/pull/18998))
 * Make graph based type checking and parallel optimizations deterministic ([PR #19028](https://github.com/dotnet/fsharp/pull/19028))
 
-
 ### Breaking Changes
+
+* `SynExpr.LetOrUse` holds `SynLetOrUse`. ([PR #19090](https://github.com/dotnet/fsharp/pull/19090))
+* `SynExprLetOrUseTrivia` is now `SynLetOrUseTrivia`. ([PR #19090](https://github.com/dotnet/fsharp/pull/19090))
+* `SynMemberDefn.LetBindings` has trivia. ([PR #19090](https://github.com/dotnet/fsharp/pull/19090))
+* `SynModuleDecl.Let` has trivia. ([PR #19090](https://github.com/dotnet/fsharp/pull/19090))
diff --git a/src/Compiler/Checking/CheckDeclarations.fs b/src/Compiler/Checking/CheckDeclarations.fs
index e230cd48280..ce981291c48 100644
--- a/src/Compiler/Checking/CheckDeclarations.fs
+++ b/src/Compiler/Checking/CheckDeclarations.fs
@@ -1108,7 +1108,7 @@ module MutRecBindingChecking =
                             let innerState = (incrCtorInfoOpt, envForTycon, tpenv, recBindIdx, uncheckedBindsRev)
                             [Phase2AInherit (ty, arg, baseValOpt, m); Phase2AIncrClassCtorJustAfterSuperInit], innerState
 
-                        | Some (SynMemberDefn.LetBindings (letBinds, isStatic, isRec, m)), _ ->
+                        | Some (SynMemberDefn.LetBindings (bindings = letBinds; isStatic = isStatic; isRecursive = isRec; range = m)), _ ->
                             match tcref.TypeOrMeasureKind, isStatic with 
                             | TyparKind.Measure, false -> errorR(Error(FSComp.SR.tcMeasureDeclarationsRequireStaticMembers(), m)) 
                             | _ -> ()
@@ -4412,7 +4412,7 @@ module TcDeclarations =
                 let attribs = mkAttributeList attribs mWholeAutoProp
                 let binding = mkSynBinding (xmlDoc, headPat) (None, false, isMutable, mLetPortion, DebugPointAtBinding.NoneAtInvisible, retInfo, synExpr, synExpr.Range, [], attribs, None, SynBindingTrivia.Zero)
 
-                [(SynMemberDefn.LetBindings ([binding], isStatic, false, mWholeAutoProp))]
+                [(SynMemberDefn.LetBindings ([binding], isStatic, false, mWholeAutoProp, SynMemberDefnLetBindingsTrivia.Zero))]
 
             | SynMemberDefn.Interface (members=Some membs) -> membs |> List.collect preAutoProps
             | SynMemberDefn.LetBindings _
@@ -5113,7 +5113,7 @@ let ElimSynModuleDeclExpr bind =
     match bind with 
     | SynModuleDecl.Expr (expr, m) -> 
         let bind2 = SynBinding (None, SynBindingKind.StandaloneExpression, false, false, [], PreXmlDoc.Empty, SynInfo.emptySynValData, SynPat.Wild m, None, expr, m, DebugPointAtBinding.NoneAtDo, SynBindingTrivia.Zero)
-        SynModuleDecl.Let(false, [bind2], m)
+        SynModuleDecl.Let(false, [bind2], m, SynModuleDeclLetTrivia.Zero)
     | _ -> bind
 
 let TcMutRecDefnsEscapeCheck (binds: MutRecShapes<_, _, _>) env = 
@@ -5187,7 +5187,7 @@ let TcModuleOrNamespaceElementsMutRec (cenv: cenv) parent typeNames m envInitial
                   let decls = typeDefs |> List.map MutRecShape.Tycon
                   decls, (false, false, attrs)
 
-              | SynModuleDecl.Let (letrec, binds, m) -> 
+              | SynModuleDecl.Let (isRecursive = letrec; bindings = binds; range = m) -> 
                   let binds = 
                       if isNamespace then 
                           CheckLetOrDoInNamespace binds m; []
@@ -5292,7 +5292,7 @@ let rec TcModuleOrNamespaceElementNonMutRec (cenv: cenv) parent typeNames scopem
               | _ -> [ TMDefOpens openDecls ]
           return (defns, [], []), env, env
 
-      | SynModuleDecl.Let (letrec, binds, m) -> 
+      | SynModuleDecl.Let (isRecursive = letrec; bindings = binds; range = m) -> 
 
           match parent with
           | ParentNone ->
diff --git a/src/Compiler/Checking/CheckRecordSyntaxHelpers.fs b/src/Compiler/Checking/CheckRecordSyntaxHelpers.fs
index aa2e3546ba0..7df9f642c12 100644
--- a/src/Compiler/Checking/CheckRecordSyntaxHelpers.fs
+++ b/src/Compiler/Checking/CheckRecordSyntaxHelpers.fs
@@ -193,13 +193,11 @@ let BindOriginalRecdExpr (withExpr: SynExpr * BlockSeparator) mkRecdExpr =
              None,
              SynBindingTrivia.Zero)
 
-    SynExpr.LetOrUse(
-        isRecursive = false,
-        isUse = false,
-        isFromSource = false, // compiler generated during desugaring
-        isBang = false,
-        bindings = [ binding ],
-        body = mkRecdExpr (Some withExpr),
-        range = mOrigExprSynth,
-        trivia = SynExprLetOrUseTrivia.Zero
-    )
+    SynExpr.LetOrUse
+        {
+            IsRecursive = false
+            Bindings = [ binding ]
+            Body = mkRecdExpr (Some withExpr)
+            Range = mOrigExprSynth
+            Trivia = SynLetOrUseTrivia.Zero
+        }
diff --git a/src/Compiler/Checking/Expressions/CheckComputationExpressions.fs b/src/Compiler/Checking/Expressions/CheckComputationExpressions.fs
index 607a87ab08b..0fdab8579e3 100644
--- a/src/Compiler/Checking/Expressions/CheckComputationExpressions.fs
+++ b/src/Compiler/Checking/Expressions/CheckComputationExpressions.fs
@@ -862,34 +862,28 @@ let private mkTypedHeadPat (SynBinding(headPat = headPattern; returnInfo = retur
 [<return: Struct>]
 let (|ExprAsUseBang|_|) expr =
     match expr with
-    | SynExpr.LetOrUse(
-        isUse = true
-        isFromSource = isFromSource
-        isBang = true
-        bindings = bindings
-        body = innerComp
-        trivia = { LetOrUseKeyword = mBind }) ->
+    | SynExpr.LetOrUse({
+                           Bindings = bindings
+                           Body = innerComp
+                       } as letOrUse) when letOrUse.IsUse && letOrUse.IsBang ->
         match bindings with
-        | SynBinding(debugPoint = spBind; expr = rhsExpr) as binding :: andBangs ->
+        | SynBinding(debugPoint = spBind; expr = rhsExpr; trivia = { LeadingKeyword = leadingKeyword }) as binding :: andBangs ->
             let pat = mkTypedHeadPat binding
-            ValueSome(spBind, isFromSource, pat, rhsExpr, andBangs, innerComp, mBind)
+            ValueSome(spBind, letOrUse.IsFromSource, pat, rhsExpr, andBangs, innerComp, leadingKeyword.Range)
         | _ -> ValueNone
     | _ -> ValueNone
 
 [<return: Struct>]
 let (|ExprAsLetBang|_|) expr =
     match expr with
-    | SynExpr.LetOrUse(
-        isUse = false
-        isFromSource = isFromSource
-        isBang = true
-        bindings = bindings
-        body = innerComp
-        trivia = { LetOrUseKeyword = mBind }) ->
+    | SynExpr.LetOrUse({
+                           Bindings = bindings
+                           Body = innerComp
+                       } as letOrUse) when not letOrUse.IsUse && letOrUse.IsBang ->
         match bindings with
-        | SynBinding(debugPoint = spBind; expr = letRhsExpr) as binding :: andBangBindings ->
+        | SynBinding(debugPoint = spBind; expr = letRhsExpr; trivia = { LeadingKeyword = leadingKeyword }) as binding :: andBangBindings ->
             let letPat = mkTypedHeadPat binding
-            ValueSome(spBind, isFromSource, letPat, letRhsExpr, andBangBindings, innerComp, mBind)
+            ValueSome(spBind, letOrUse.IsFromSource, letPat, letRhsExpr, andBangBindings, innerComp, leadingKeyword.Range)
         | _ -> ValueNone
     | _ -> ValueNone
 
@@ -1400,7 +1394,9 @@ let rec TryTranslateComputationExpression
                              [],
                              [],
                              None,
-                             SynBindingTrivia.Zero)
+                             { SynBindingTrivia.Zero with
+                                 LeadingKeyword = SynLeadingKeyword.Let patCond.Range.StartRange
+                             })
 
                     let setCondExpr = SynExpr.Set(SynExpr.Ident idCond, SynExpr.Ident idFirst, mGuard)
 
@@ -1418,20 +1414,21 @@ let rec TryTranslateComputationExpression
                             expr = guardExpr,
                             range = guardExpr.Range,
                             debugPoint = DebugPointAtBinding.NoneAtSticky,
-                            trivia = SynBindingTrivia.Zero
+                            trivia =
+                                { SynBindingTrivia.Zero with
+                                    LeadingKeyword = SynLeadingKeyword.LetBang patFirst.Range.StartRange
+                                }
                         )
 
                     let bindCondExpr =
-                        SynExpr.LetOrUse(
-                            isRecursive = false,
-                            isUse = false,
-                            isFromSource = true, // compiler generated during desugaring
-                            isBang = true,
-                            bindings = [ binding ],
-                            body = setCondExpr,
-                            range = mGuard,
-                            trivia = SynExprLetOrUseTrivia.Zero
-                        )
+                        SynExpr.LetOrUse
+                            {
+                                IsRecursive = false
+                                Bindings = [ binding ]
+                                Body = setCondExpr
+                                Range = mGuard
+                                Trivia = SynLetOrUseTrivia.Zero
+                            }
 
                     let whileExpr =
                         SynExpr.While(
@@ -1448,16 +1445,14 @@ let rec TryTranslateComputationExpression
                             mOrig
                         )
 
-                    SynExpr.LetOrUse(
-                        isRecursive = false,
-                        isUse = false,
-                        isFromSource = false, // compiler generated during desugaring
-                        isBang = false,
-                        bindings = [ condBinding ],
-                        body = whileExpr,
-                        range = mGuard,
-                        trivia = SynExprLetOrUseTrivia.Zero
-                    )
+                    SynExpr.LetOrUse
+                        {
+                            IsRecursive = false
+                            Bindings = [ condBinding ]
+                            Body = whileExpr
+                            Range = mGuard
+                            Trivia = SynLetOrUseTrivia.Zero
+                        }
 
                 let binding =
                     SynBinding(
@@ -1473,19 +1468,20 @@ let rec TryTranslateComputationExpression
                         expr = guardExpr,
                         range = guardExpr.Range,
                         debugPoint = DebugPointAtBinding.NoneAtSticky,
-                        trivia = SynBindingTrivia.Zero
+                        trivia =
+                            { SynBindingTrivia.Zero with
+                                LeadingKeyword = SynLeadingKeyword.LetBang patFirst.Range.StartRange
+                            }
                     )
 
-                SynExpr.LetOrUse(
-                    isRecursive = false,
-                    isUse = false,
-                    isFromSource = true, // compiler generated during desugaring
-                    isBang = true,
-                    bindings = [ binding ],
-                    body = body,
-                    range = mGuard,
-                    trivia = SynExprLetOrUseTrivia.Zero
-                )
+                SynExpr.LetOrUse
+                    {
+                        IsRecursive = false
+                        Bindings = [ binding ]
+                        Body = body
+                        Range = mGuard
+                        Trivia = SynLetOrUseTrivia.Zero
+                    }
 
             TryTranslateComputationExpression ceenv CompExprTranslationPass.Initial q varSpace rewrittenWhileExpr translatedCtxt
 
@@ -1687,7 +1683,10 @@ let rec TryTranslateComputationExpression
                                 expr = rhsExpr,
                                 range = rhsExpr.Range,
                                 debugPoint = sp,
-                                trivia = SynBindingTrivia.Zero
+                                trivia =
+                                    { SynBindingTrivia.Zero with
+                                        LeadingKeyword = SynLeadingKeyword.LetBang rhsExpr.Range.StartRange
+                                    }
                             )
 
                         Some(
@@ -1696,16 +1695,14 @@ let rec TryTranslateComputationExpression
                                 CompExprTranslationPass.Initial
                                 q
                                 varSpace
-                                (SynExpr.LetOrUse(
-                                    isRecursive = false,
-                                    isUse = false,
-                                    isFromSource = true, // compiler generated during desugaring
-                                    isBang = true,
-                                    bindings = [ binding ],
-                                    body = innerComp2,
-                                    range = m,
-                                    trivia = SynExprLetOrUseTrivia.Zero
-                                ))
+                                (SynExpr.LetOrUse
+                                    {
+                                        IsRecursive = false
+                                        Bindings = [ binding ]
+                                        Body = innerComp2
+                                        Range = m
+                                        Trivia = SynLetOrUseTrivia.Zero
+                                    })
                                 translatedCtxt
                         )
 
@@ -1773,20 +1770,16 @@ let rec TryTranslateComputationExpression
                 )
 
         // 'let binds in expr'
-        | SynExpr.LetOrUse(
-            isRecursive = isRec
-            isUse = false
-            isFromSource = isFromSource
-            isBang = false
-            bindings = binds
-            body = innerComp
-            range = m
-            trivia = trivia) ->
+        | SynExpr.LetOrUse({
+                               Bindings = binds
+                               Body = innerComp
+                               Range = m
+                           } as letOrUse) when not letOrUse.IsUse && not letOrUse.IsBang ->
 
             // For 'query' check immediately
             if ceenv.isQuery then
                 match (List.map (BindingNormalization.NormalizeBinding ValOrMemberBinding cenv ceenv.env) binds) with
-                | [ NormalizedBinding(_, SynBindingKind.Normal, false, false, _, _, _, _, _, _, _, _) ] when not isRec -> ()
+                | [ NormalizedBinding(_, SynBindingKind.Normal, false, false, _, _, _, _, _, _, _, _) ] when not letOrUse.IsRecursive -> ()
                 | normalizedBindings ->
                     let failAt m =
                         error (Error(FSComp.SR.tcNonSimpleLetBindingInQuery (), m))
@@ -1815,29 +1808,30 @@ let rec TryTranslateComputationExpression
             Some(
                 TranslateComputationExpression ceenv CompExprTranslationPass.Initial q varSpace innerComp (fun holeFill ->
                     translatedCtxt (
-                        SynExpr.LetOrUse(
-                            isRecursive = isRec,
-                            isUse = false,
-                            isFromSource = isFromSource,
-                            isBang = false,
-                            bindings = binds,
-                            body = holeFill,
-                            range = m,
-                            trivia = trivia
-                        )
+                        SynExpr.LetOrUse
+                            {
+                                IsRecursive = letOrUse.IsRecursive
+                                Bindings = binds
+                                Body = holeFill
+                                Range = m
+                                Trivia = SynLetOrUseTrivia.Zero
+                            }
                     ))
             )
 
         // 'use x = expr in expr'
-        | SynExpr.LetOrUse(
-            isUse = true
-            isBang = false
-            bindings = [ SynBinding(kind = SynBindingKind.Normal; headPat = pat; expr = rhsExpr; debugPoint = spBind) ]
-            body = innerComp
-            trivia = { LetOrUseKeyword = mBind }) ->
+        | SynExpr.LetOrUse({
+                               Bindings = [ SynBinding(
+                                                kind = SynBindingKind.Normal
+                                                headPat = pat
+                                                expr = rhsExpr
+                                                debugPoint = spBind
+                                                trivia = { LeadingKeyword = leadingKeyword }) ]
+                               Body = innerComp
+                           } as letOrUse) when letOrUse.IsUse && not letOrUse.IsBang ->
 
             if ceenv.isQuery then
-                error (Error(FSComp.SR.tcUseMayNotBeUsedInQueries (), mBind))
+                error (Error(FSComp.SR.tcUseMayNotBeUsedInQueries (), leadingKeyword.Range))
 
             let innerCompRange = innerComp.Range
 
@@ -1859,10 +1853,10 @@ let rec TryTranslateComputationExpression
                     innerCompRange
                 )
 
-            requireBuilderMethod "Using" ceenv mBind mBind
+            requireBuilderMethod "Using" ceenv leadingKeyword.Range leadingKeyword.Range
 
             Some(
-                translatedCtxt (mkSynCall "Using" mBind [ rhsExpr; consumeExpr ] ceenv.builderValName)
+                translatedCtxt (mkSynCall "Using" leadingKeyword.Range [ rhsExpr; consumeExpr ] ceenv.builderValName)
                 |> addBindDebugPoint spBind
             )
 
@@ -2469,19 +2463,20 @@ and ConsumeCustomOpClauses
                                     expr = dataCompAfterOp,
                                     range = dataCompAfterOp.Range,
                                     debugPoint = DebugPointAtBinding.NoneAtLet,
-                                    trivia = SynBindingTrivia.Zero
+                                    trivia =
+                                        { SynBindingTrivia.Zero with
+                                            LeadingKeyword = SynLeadingKeyword.LetBang intoPat.Range.StartRange
+                                        }
                                 )
 
-                            SynExpr.LetOrUse(
-                                isRecursive = false,
-                                isUse = false,
-                                isFromSource = false, // compiler generated during desugaring
-                                isBang = true,
-                                bindings = [ binding ],
-                                body = contExpr,
-                                range = intoPat.Range,
-                                trivia = SynExprLetOrUseTrivia.Zero
-                            )
+                            SynExpr.LetOrUse
+                                {
+                                    IsRecursive = false
+                                    Bindings = [ binding ]
+                                    Body = contExpr
+                                    Range = intoPat.Range
+                                    Trivia = SynLetOrUseTrivia.Zero
+                                }
                         else
                             SynExpr.ForEach(
                                 DebugPointAtFor.No,
@@ -2526,19 +2521,20 @@ and ConsumeCustomOpClauses
                         expr = dataCompPrior,
                         range = dataCompPrior.Range,
                         debugPoint = DebugPointAtBinding.NoneAtLet,
-                        trivia = SynBindingTrivia.Zero
+                        trivia =
+                            { SynBindingTrivia.Zero with
+                                LeadingKeyword = SynLeadingKeyword.LetBang varSpacePat.Range.StartRange
+                            }
                     )
 
-                SynExpr.LetOrUse(
-                    isRecursive = false,
-                    isUse = false,
-                    isFromSource = false, // compiler generated during desugaring
-                    isBang = true,
-                    bindings = [ binding ],
-                    body = compClausesExpr,
-                    range = compClausesExpr.Range,
-                    trivia = SynExprLetOrUseTrivia.Zero
-                )
+                SynExpr.LetOrUse
+                    {
+                        IsRecursive = false
+                        Bindings = [ binding ]
+                        Body = compClausesExpr
+                        Range = compClausesExpr.Range
+                        Trivia = SynLetOrUseTrivia.Zero
+                    }
             else
                 SynExpr.ForEach(
                     DebugPointAtFor.No,
@@ -2668,30 +2664,24 @@ and convertSimpleReturnToExpr (ceenv: ComputationExpressionContext<'a>) comp var
             | Some elseExprOpt ->
                 Some(SynExpr.IfThenElse(guardExpr, thenExpr, elseExprOpt, spIfToThen, isRecovery, mIfToEndOfElseBranch, trivia), None)
 
-    | SynExpr.LetOrUse(
-        isRecursive = isRec
-        isUse = false
-        isFromSource = isFromSource
-        isBang = false
-        bindings = binds
-        body = innerComp
-        range = m
-        trivia = trivia) ->
+    | SynExpr.LetOrUse({
+                           Bindings = binds
+                           Body = innerComp
+                           Range = m
+                       } as letOrUse) when not letOrUse.IsUse && not letOrUse.IsBang ->
         match convertSimpleReturnToExpr ceenv comp varSpace innerComp with
         | None -> None
         | Some(_, Some _) -> None
         | Some(innerExpr, None) ->
             Some(
-                SynExpr.LetOrUse(
-                    isRecursive = isRec,
-                    isUse = false,
-                    isFromSource = isFromSource,
-                    isBang = false,
-                    bindings = binds,
-                    body = innerExpr,
-                    range = m,
-                    trivia = trivia
-                ),
+                SynExpr.LetOrUse
+                    {
+                        IsRecursive = letOrUse.IsRecursive
+                        Bindings = binds
+                        Body = innerExpr
+                        Range = m
+                        Trivia = SynLetOrUseTrivia.Zero
+                    },
                 None
             )
 
@@ -2734,8 +2724,8 @@ and isSimpleExpr ceenv comp =
         && (match elseCompOpt with
             | None -> true
             | Some c -> isSimpleExpr ceenv c)
-    | SynExpr.LetOrUse(isBang = false; body = innerComp) -> isSimpleExpr ceenv innerComp
-    | SynExpr.LetOrUse(isBang = true) -> false
+    | SynExpr.LetOrUse({ Body = innerComp } as letOrUse) when not letOrUse.IsBang -> isSimpleExpr ceenv innerComp
+    | SynExpr.LetOrUse(letOrUse) when letOrUse.IsBang -> false
     | SynExpr.Match(clauses = clauses) ->
         clauses
         |> List.forall (fun (SynMatchClause(resultExpr = innerComp)) -> isSimpleExpr ceenv innerComp)
@@ -2806,19 +2796,20 @@ and TranslateComputationExpression (ceenv: ComputationExpressionContext<'a>) fir
                             expr = rhsExpr,
                             range = rhsExpr.Range,
                             debugPoint = DebugPointAtBinding.NoneAtDo,
-                            trivia = SynBindingTrivia.Zero
+                            trivia =
+                                { SynBindingTrivia.Zero with
+                                    LeadingKeyword = SynLeadingKeyword.LetBang rhsExpr.Range.StartRange
+                                }
                         )
 
-                    SynExpr.LetOrUse(
-                        isRecursive = false,
-                        isUse = false,
-                        isFromSource = false, // compiler generated during desugaring
-                        isBang = true,
-                        bindings = [ binding ],
-                        body = bodyExpr,
-                        range = m,
-                        trivia = SynExprLetOrUseTrivia.Zero
-                    )
+                    SynExpr.LetOrUse
+                        {
+                            IsRecursive = false
+                            Bindings = [ binding ]
+                            Body = bodyExpr
+                            Range = m
+                            Trivia = SynLetOrUseTrivia.Zero
+                        }
 
                 TranslateComputationExpression ceenv CompExprTranslationPass.Initial q varSpace letBangBind translatedCtxt
 
diff --git a/src/Compiler/Checking/Expressions/CheckExpressions.fs b/src/Compiler/Checking/Expressions/CheckExpressions.fs
index 527a09cf1d0..33c45e1829d 100644
--- a/src/Compiler/Checking/Expressions/CheckExpressions.fs
+++ b/src/Compiler/Checking/Expressions/CheckExpressions.fs
@@ -6073,8 +6073,9 @@ and TcExprUndelayed (cenv: cenv) (overallTy: OverallTy) env tpenv (synExpr: SynE
 
     | SynExpr.DoBang (trivia = { DoBangKeyword = m })
     | SynExpr.MatchBang (trivia = { MatchBangKeyword = m })
-    | SynExpr.WhileBang (range = m)
-    | SynExpr.LetOrUse (isBang = true; trivia = { LetOrUseKeyword = m }) ->
+    | SynExpr.WhileBang (range = m) ->
+        error(Error(FSComp.SR.tcConstructRequiresComputationExpression(), m))
+    | SynExpr.LetOrUse(({ Range = m}) as letOrUse) when letOrUse.IsBang ->
         error(Error(FSComp.SR.tcConstructRequiresComputationExpression(), m))
 
     | SynExpr.IndexFromEnd (rightExpr, m) ->
@@ -9207,7 +9208,6 @@ and TcImplicitOpItemThen (cenv: cenv) overallTy env id sln tpenv mItem delayed =
         | SynExpr.YieldOrReturn _
         | SynExpr.YieldOrReturnFrom _
         | SynExpr.MatchBang _
-        | SynExpr.LetOrUse (isBang = true)
         | SynExpr.DoBang _
         | SynExpr.WhileBang _
         | SynExpr.TraitCall _
@@ -10622,12 +10622,12 @@ and TcLinearExprs bodyChecker cenv env overallTy tpenv isCompExpr synExpr cont =
         TcLinearExprs bodyChecker cenv env2 overallTy tpenv isCompExpr expr2 (fun (expr2R, tpenv) ->
             cont (Expr.Sequential (expr1R, expr2R, NormalSeq, m), tpenv))
 
-    | SynExpr.LetOrUse (isRecursive = isRec; isUse= isUse; bindings = binds; body = body; range = m) when not (isUse && isCompExpr) ->
+    | SynExpr.LetOrUse ({ IsRecursive = isRec; Bindings = binds; Body = body; Range = m } as letOrUse) when not (letOrUse.IsUse && isCompExpr) ->
         if isRec then
             // TcLinearExprs processes at most one recursive binding, this is not tailcalling
             CheckRecursiveBindingIds binds
             let binds = List.map (fun x -> RecDefnBindingInfo(ExprContainerInfo, NoNewSlots, ExpressionBinding, x)) binds
-            if isUse then errorR(Error(FSComp.SR.tcBindingCannotBeUseAndRec(), m))
+            if letOrUse.IsUse then errorR(Error(FSComp.SR.tcBindingCannotBeUseAndRec(), m))
             let binds, envinner, tpenv = TcLetrecBindings ErrorOnOverrides cenv env tpenv (binds, m, m)
             let envinner = { envinner with eIsControlFlow = true }
             let bodyExpr, tpenv = bodyChecker overallTy envinner tpenv body
@@ -10635,7 +10635,7 @@ and TcLinearExprs bodyChecker cenv env overallTy tpenv isCompExpr synExpr cont =
             cont (bodyExpr, tpenv)
         else
             // TcLinearExprs processes multiple 'let' bindings in a tail recursive way
-            let mkf, envinner, tpenv = TcLetBinding cenv isUse env ExprContainerInfo ExpressionBinding tpenv (binds, m, body.Range)
+            let mkf, envinner, tpenv = TcLetBinding cenv letOrUse.IsUse env ExprContainerInfo ExpressionBinding tpenv (binds, m, body.Range)
             let envinner = ShrinkContext envinner m body.Range
             let envinner = { envinner with eIsControlFlow = true }
             // tailcall
diff --git a/src/Compiler/Checking/Expressions/CheckExpressionsOps.fs b/src/Compiler/Checking/Expressions/CheckExpressionsOps.fs
index 6c12485c4ed..feb281c3429 100644
--- a/src/Compiler/Checking/Expressions/CheckExpressionsOps.fs
+++ b/src/Compiler/Checking/Expressions/CheckExpressionsOps.fs
@@ -197,8 +197,8 @@ let YieldFree (cenv: TcFileState) expr =
             | SynExpr.MatchBang(clauses = clauses) -> clauses |> List.forall (fun (SynMatchClause(resultExpr = res)) -> YieldFree res)
 
             | SynExpr.For(doBody = body)
-            | SynExpr.TryFinally(tryExpr = body)
-            | SynExpr.LetOrUse(body = body)
+            | SynExpr.TryFinally(tryExpr = body) -> YieldFree body
+            | SynExpr.LetOrUse({ Body = body })
             | SynExpr.While(doExpr = body)
             | SynExpr.WhileBang(doExpr = body)
             | SynExpr.ForEach(bodyExpr = body) -> YieldFree body
@@ -223,13 +223,12 @@ let YieldFree (cenv: TcFileState) expr =
             | SynExpr.MatchBang(clauses = clauses) -> clauses |> List.forall (fun (SynMatchClause(resultExpr = res)) -> YieldFree res)
 
             | SynExpr.For(doBody = body)
-            | SynExpr.TryFinally(tryExpr = body)
-            | SynExpr.LetOrUse(body = body)
+            | SynExpr.TryFinally(tryExpr = body) -> YieldFree body
+            | SynExpr.LetOrUse({ Body = body } as letOrUse) when not letOrUse.IsBang -> YieldFree body
             | SynExpr.While(doExpr = body)
             | SynExpr.WhileBang(doExpr = body)
             | SynExpr.ForEach(bodyExpr = body) -> YieldFree body
-
-            | SynExpr.LetOrUse(isBang = true)
+            | SynExpr.LetOrUse letOrUse when letOrUse.IsBang -> false
             | SynExpr.YieldOrReturnFrom _
             | SynExpr.YieldOrReturn _
             | SynExpr.ImplicitZero _
diff --git a/src/Compiler/Checking/Expressions/CheckSequenceExpressions.fs b/src/Compiler/Checking/Expressions/CheckSequenceExpressions.fs
index 0a12e48b306..6daf17e98b7 100644
--- a/src/Compiler/Checking/Expressions/CheckSequenceExpressions.fs
+++ b/src/Compiler/Checking/Expressions/CheckSequenceExpressions.fs
@@ -216,7 +216,7 @@ let TcSequenceExpression (cenv: TcFileState) env tpenv comp (overallTy: OverallT
             Some(mkCond spIfToThen mIfToEndOfElseBranch genOuterTy guardExpr' thenExpr elseExpr, tpenv)
 
         // 'let x = expr in expr'
-        | SynExpr.LetOrUse(isUse = false) ->
+        | SynExpr.LetOrUse letOrUse when not letOrUse.IsUse ->
             TcLinearExprs
                 (fun overallTy envinner tpenv e -> tcSequenceExprBody envinner overallTy.Commit tpenv e)
                 cenv
@@ -229,12 +229,15 @@ let TcSequenceExpression (cenv: TcFileState) env tpenv comp (overallTy: OverallT
             |> Some
 
         // 'use x = expr in expr'
-        | SynExpr.LetOrUse(
-            isUse = true
-            bindings = [ SynBinding(kind = SynBindingKind.Normal; headPat = pat; expr = rhsExpr) ]
-            body = innerComp
-            range = wholeExprMark
-            trivia = { LetOrUseKeyword = mBind }) ->
+        | SynExpr.LetOrUse({
+                               Bindings = [ SynBinding(
+                                                kind = SynBindingKind.Normal
+                                                headPat = pat
+                                                expr = rhsExpr
+                                                trivia = { LeadingKeyword = leadingKeyword }) ]
+                               Body = innerComp
+                               Range = wholeExprMark
+                           } as letOrUse) when letOrUse.IsUse ->
 
             let bindPatTy = NewInferenceType g
             let inputExprTy = NewInferenceType g
@@ -257,12 +260,12 @@ let TcSequenceExpression (cenv: TcFileState) env tpenv comp (overallTy: OverallT
             let matchv, matchExpr =
                 compileSeqExprMatchClauses cenv envinner inputExprMark (pat', vspecs) innerExpr (Some inputExpr) bindPatTy genOuterTy
 
-            let consumeExpr = mkLambda mBind matchv (matchExpr, genOuterTy)
+            let consumeExpr = mkLambda leadingKeyword.Range matchv (matchExpr, genOuterTy)
 
-            // The 'mBind' is attached to the lambda
+            // The 'leadingKeyword.Range' is attached to the lambda
             Some(mkSeqUsing cenv env wholeExprMark bindPatTy genOuterTy inputExpr consumeExpr, tpenv)
 
-        | SynExpr.LetOrUse(isBang = true; range = m) -> error (Error(FSComp.SR.tcUseForInSequenceExpression (), m))
+        | SynExpr.LetOrUse letOrUse when letOrUse.IsBang -> error (Error(FSComp.SR.tcUseForInSequenceExpression (), letOrUse.Range))
 
         | SynExpr.Match(spMatch, expr, clauses, _m, _trivia) ->
             let inputExpr, inputTy, tpenv = TcExprOfUnknownType cenv env tpenv expr
diff --git a/src/Compiler/Driver/GraphChecking/FileContentMapping.fs b/src/Compiler/Driver/GraphChecking/FileContentMapping.fs
index efa1b935fc8..12881a8dbe2 100644
--- a/src/Compiler/Driver/GraphChecking/FileContentMapping.fs
+++ b/src/Compiler/Driver/GraphChecking/FileContentMapping.fs
@@ -437,7 +437,7 @@ let visitSynExpr (e: SynExpr) : FileContentEntry list =
             visit funcExpr (fun funcNodes -> visit argExpr (fun argNodes -> funcNodes @ argNodes |> continuation))
         | SynExpr.TypeApp(expr = expr; typeArgs = typeArgs) ->
             visit expr (fun exprNodes -> exprNodes @ List.collect visitSynType typeArgs |> continuation)
-        | SynExpr.LetOrUse(bindings = bindings; body = body) ->
+        | SynExpr.LetOrUse({ Bindings = bindings; Body = body }) ->
             visit body (fun nodes -> List.collect visitBinding bindings @ nodes |> continuation)
         | SynExpr.TryWith(tryExpr = tryExpr; withCases = withCases) ->
             visit tryExpr (fun nodes -> nodes @ List.collect visitSynMatchClause withCases |> continuation)
diff --git a/src/Compiler/Interactive/fsi.fs b/src/Compiler/Interactive/fsi.fs
index a52b5a70d42..ca96324426a 100644
--- a/src/Compiler/Interactive/fsi.fs
+++ b/src/Compiler/Interactive/fsi.fs
@@ -2587,7 +2587,7 @@ type internal FsiDynamicCompiler
             )
 
         let bindingA = mkBind (mkSynPatVar None itID) expr
-        let defA = SynModuleDecl.Let(false, [ bindingA ], m)
+        let defA = SynModuleDecl.Let(false, [ bindingA ], m, SynModuleDeclLetTrivia.Zero)
         [ defA ]
 
     // Construct an invisible call to Debugger.Break(), in the specified range
diff --git a/src/Compiler/Service/FSharpParseFileResults.fs b/src/Compiler/Service/FSharpParseFileResults.fs
index 07eb010a767..434974de754 100644
--- a/src/Compiler/Service/FSharpParseFileResults.fs
+++ b/src/Compiler/Service/FSharpParseFileResults.fs
@@ -102,7 +102,7 @@ type FSharpParseFileResults(diagnostics: FSharpDiagnostic[], input: ParsedInput,
                 else
                     walkBinding expr2 workingRange
 
-            | SynExpr.LetOrUse(bindings = bindings; body = bodyExpr) ->
+            | SynExpr.LetOrUse({ Bindings = bindings; Body = bodyExpr }) ->
                 let potentialNestedRange =
                     bindings
                     |> List.tryFind (fun binding -> rangeContainsPos binding.RangeOfBindingWithRhs pos)
@@ -696,7 +696,7 @@ type FSharpParseFileResults(diagnostics: FSharpDiagnostic[], input: ParsedInput,
                                 yield! walkExprOpt true whenExpr
                                 yield! walkExpr true tgtExpr
 
-                        | SynExpr.LetOrUse(bindings = binds; body = bodyExpr) ->
+                        | SynExpr.LetOrUse({ Bindings = binds; Body = bodyExpr }) ->
                             yield! walkBinds binds
                             yield! walkExpr true bodyExpr
 
@@ -791,7 +791,7 @@ type FSharpParseFileResults(diagnostics: FSharpDiagnostic[], input: ParsedInput,
                 else
                     [
                         match memb with
-                        | SynMemberDefn.LetBindings(binds, _, _, _) -> yield! walkBinds binds
+                        | SynMemberDefn.LetBindings(bindings = binds) -> yield! walkBinds binds
                         | SynMemberDefn.AutoProperty(synExpr = synExpr) -> yield! walkExpr true synExpr
                         | SynMemberDefn.ImplicitCtor(range = m) -> yield! checkRange m
                         | SynMemberDefn.Member(bind, _) -> yield! walkBind bind
@@ -821,7 +821,7 @@ type FSharpParseFileResults(diagnostics: FSharpDiagnostic[], input: ParsedInput,
             let rec walkDecl decl =
                 [
                     match decl with
-                    | SynModuleDecl.Let(_, binds, m) when isMatchRange m -> yield! walkBinds binds
+                    | SynModuleDecl.Let(bindings = binds; range = m) when isMatchRange m -> yield! walkBinds binds
                     | SynModuleDecl.Expr(expr, m) when isMatchRange m -> yield! walkExpr true expr
                     | SynModuleDecl.ModuleAbbrev _ -> ()
                     | SynModuleDecl.NestedModule(decls = decls; range = m) when isMatchRange m ->
diff --git a/src/Compiler/Service/ServiceInterfaceStubGenerator.fs b/src/Compiler/Service/ServiceInterfaceStubGenerator.fs
index c53ab5d7583..2687b4e0f54 100644
--- a/src/Compiler/Service/ServiceInterfaceStubGenerator.fs
+++ b/src/Compiler/Service/ServiceInterfaceStubGenerator.fs
@@ -779,7 +779,7 @@ module InterfaceStubGenerator =
             else
                 match decl with
                 | SynModuleDecl.Exception(SynExceptionDefn(_, _, synMembers, _), _) -> List.tryPick walkSynMemberDefn synMembers
-                | SynModuleDecl.Let(_isRecursive, bindings, _range) -> List.tryPick walkBinding bindings
+                | SynModuleDecl.Let(bindings = bindings) -> List.tryPick walkBinding bindings
                 | SynModuleDecl.ModuleAbbrev(_lhs, _rhs, _range) -> None
                 | SynModuleDecl.NamespaceFragment(fragment) -> walkSynModuleOrNamespace fragment
                 | SynModuleDecl.NestedModule(decls = modules) -> List.tryPick walkSynModuleDecl modules
@@ -826,7 +826,7 @@ module InterfaceStubGenerator =
                     | Some getBinding, Some setBinding -> walkBinding getBinding |> Option.orElseWith (fun () -> walkBinding setBinding)
                 | SynMemberDefn.NestedType(typeDef, _access, _range) -> walkSynTypeDefn typeDef
                 | SynMemberDefn.ValField _ -> None
-                | SynMemberDefn.LetBindings(bindings, _isStatic, _isRec, _range) -> List.tryPick walkBinding bindings
+                | SynMemberDefn.LetBindings(bindings = bindings) -> List.tryPick walkBinding bindings
                 | SynMemberDefn.Open _
                 | SynMemberDefn.ImplicitCtor _
                 | SynMemberDefn.Inherit _ -> None
@@ -909,8 +909,10 @@ module InterfaceStubGenerator =
 
                 | SynExpr.TypeApp(synExpr, _, _synTypeList, _commas, _, _, _range) -> walkExpr synExpr
 
-                | SynExpr.LetOrUse(bindings = synBindingList; body = synExpr) ->
-                    Option.orElse (List.tryPick walkBinding synBindingList) (walkExpr synExpr)
+                | SynExpr.LetOrUse({
+                                       Bindings = synBindingList
+                                       Body = synExpr
+                                   }) -> Option.orElse (List.tryPick walkBinding synBindingList) (walkExpr synExpr)
 
                 | SynExpr.TryWith(tryExpr = synExpr) -> walkExpr synExpr
 
diff --git a/src/Compiler/Service/ServiceNavigation.fs b/src/Compiler/Service/ServiceNavigation.fs
index 25708f87f5b..5c15f756133 100755
--- a/src/Compiler/Service/ServiceNavigation.fs
+++ b/src/Compiler/Service/ServiceNavigation.fs
@@ -324,7 +324,7 @@ module NavigationImpl =
                 |> List.map (fun md ->
                     md.Range,
                     (match md with
-                     | SynMemberDefn.LetBindings(binds, _, _, _) -> List.collect (processBinding false enclosingEntityKind false) binds
+                     | SynMemberDefn.LetBindings(bindings = binds) -> List.collect (processBinding false enclosingEntityKind false) binds
                      | SynMemberDefn.GetSetMember(Some bind, None, _, _)
                      | SynMemberDefn.GetSetMember(None, Some bind, _, _)
                      | SynMemberDefn.Member(bind, _) -> processBinding true enclosingEntityKind false bind
@@ -366,7 +366,7 @@ module NavigationImpl =
             [
                 for decl in decls do
                     match decl with
-                    | SynModuleDecl.Let(_, binds, _) ->
+                    | SynModuleDecl.Let(bindings = binds) ->
                         for bind in binds do
                             yield! processBinding false NavigationEntityKind.Module false bind
                     | _ -> ()
@@ -955,7 +955,7 @@ module NavigateTo =
 
                 for m in synMembers do
                     walkSynMemberDefn m container
-            | SynModuleDecl.Let(_, bindings, _) ->
+            | SynModuleDecl.Let(bindings = bindings) ->
                 for binding in bindings do
                     addBinding binding None container
             | SynModuleDecl.ModuleAbbrev(lhs, _, _) -> addModuleAbbreviation lhs false container
@@ -1023,7 +1023,7 @@ module NavigateTo =
                 Option.iter (fun b -> addBinding b None container) setBinding
             | SynMemberDefn.NestedType(typeDef, _, _) -> walkSynTypeDefn typeDef container
             | SynMemberDefn.ValField(fieldInfo = field) -> addField field false container
-            | SynMemberDefn.LetBindings(bindings, _, _, _) ->
+            | SynMemberDefn.LetBindings(bindings = bindings) ->
                 bindings
                 |> List.iter (fun binding -> addBinding binding (Some NavigableItemKind.Field) container)
             | SynMemberDefn.Open _
diff --git a/src/Compiler/Service/ServiceParseTreeWalk.fs b/src/Compiler/Service/ServiceParseTreeWalk.fs
index a3af1b3ba08..51e2b8ac43b 100644
--- a/src/Compiler/Service/ServiceParseTreeWalk.fs
+++ b/src/Compiler/Service/ServiceParseTreeWalk.fs
@@ -342,7 +342,7 @@ module SyntaxTraversal =
                     |> List.map (fun x -> dive x x.Range (traverseSynModuleDecl path))
                     |> List.append (attributeApplicationDives path attributes)
                     |> pick decl
-                | SynModuleDecl.Let(isRecursive, synBindingList, range) ->
+                | SynModuleDecl.Let(isRecursive = isRecursive; bindings = synBindingList; range = range) ->
                     match visitor.VisitLetOrUse(path, isRecursive, traverseSynBinding path, synBindingList, range) with
                     | Some x -> Some x
                     | None ->
@@ -679,7 +679,12 @@ module SyntaxTraversal =
                         ]
                         |> pick expr
 
-                | SynExpr.LetOrUse(isRecursive = isRecursive; bindings = synBindingList; body = synExpr; range = range) ->
+                | SynExpr.LetOrUse({
+                                       IsRecursive = isRecursive
+                                       Bindings = synBindingList
+                                       Body = synExpr
+                                       Range = range
+                                   }) ->
                     match visitor.VisitLetOrUse(path, isRecursive, traverseSynBinding path, synBindingList, range) with
                     | None ->
                         [
@@ -957,7 +962,7 @@ module SyntaxTraversal =
                 match traverseSynExpr path synExpr with
                 | None -> attributeApplicationDives path attributes |> pick attributes
                 | x -> x
-            | SynMemberDefn.LetBindings(synBindingList, isRecursive, _, range) ->
+            | SynMemberDefn.LetBindings(bindings = synBindingList; isRecursive = isRecursive; range = range) ->
                 match visitor.VisitLetOrUse(path, isRecursive, traverseSynBinding path, synBindingList, range) with
                 | None ->
                     synBindingList
diff --git a/src/Compiler/Service/ServiceParsedInputOps.fs b/src/Compiler/Service/ServiceParsedInputOps.fs
index 3065bc7f179..ed1a4da5bf5 100644
--- a/src/Compiler/Service/ServiceParsedInputOps.fs
+++ b/src/Compiler/Service/ServiceParsedInputOps.fs
@@ -834,7 +834,7 @@ module ParsedInput =
                 walkExprWithKind (Some EntityKind.Type) e
                 |> Option.orElseWith (fun () -> List.tryPick walkType tys)
 
-            | SynExpr.LetOrUse(bindings = bindings; body = e) ->
+            | SynExpr.LetOrUse({ Bindings = bindings; Body = e }) ->
                 List.tryPick walkBinding bindings
                 |> Option.orElseWith (fun () -> walkExprWithKind parentKind e)
 
@@ -906,7 +906,7 @@ module ParsedInput =
 
             | SynMemberDefn.ImplicitInherit(t, e, _, _, _) -> walkType t |> Option.orElseWith (fun () -> walkExpr e)
 
-            | SynMemberDefn.LetBindings(bindings, _, _, _) -> List.tryPick walkBinding bindings
+            | SynMemberDefn.LetBindings(bindings = bindings) -> List.tryPick walkBinding bindings
 
             | SynMemberDefn.Interface(interfaceType = t; members = members) ->
                 walkType t
@@ -990,7 +990,7 @@ module ParsedInput =
 
             | SynModuleDecl.Open _ -> None
 
-            | SynModuleDecl.Let(_, bindings, _) -> List.tryPick walkBinding bindings
+            | SynModuleDecl.Let(bindings = bindings) -> List.tryPick walkBinding bindings
 
             | SynModuleDecl.Expr(expr, _) -> walkExpr expr
 
@@ -2127,7 +2127,7 @@ module ParsedInput =
                 List.iter walkType tys
                 walkExpr e
 
-            | SynExpr.LetOrUse(bindings = bindings; body = e) ->
+            | SynExpr.LetOrUse({ Bindings = bindings; Body = e }) ->
                 List.iter walkBinding bindings
                 walkExpr e
 
@@ -2252,7 +2252,7 @@ module ParsedInput =
             | SynMemberDefn.ImplicitInherit(t, e, _, _, _) ->
                 walkType t
                 walkExpr e
-            | SynMemberDefn.LetBindings(bindings, _, _, _) -> List.iter walkBinding bindings
+            | SynMemberDefn.LetBindings(bindings = bindings) -> List.iter walkBinding bindings
             | SynMemberDefn.Interface(interfaceType = t; members = members) ->
                 walkType t
                 members |> Option.iter (List.iter walkMember)
@@ -2331,7 +2331,7 @@ module ParsedInput =
             | SynModuleDecl.NestedModule(moduleInfo = info; decls = modules) ->
                 walkComponentInfo false info
                 List.iter walkSynModuleDecl modules
-            | SynModuleDecl.Let(_, bindings, _) -> List.iter walkBinding bindings
+            | SynModuleDecl.Let(bindings = bindings) -> List.iter walkBinding bindings
             | SynModuleDecl.Expr(expr, _) -> walkExpr expr
             | SynModuleDecl.Types(types, _) -> List.iter walkTypeDefn types
             | SynModuleDecl.Attributes(Attributes attrs, _) -> List.iter walkAttribute attrs
diff --git a/src/Compiler/Service/ServiceStructure.fs b/src/Compiler/Service/ServiceStructure.fs
index c507e82b00b..055cb9f273b 100644
--- a/src/Compiler/Service/ServiceStructure.fs
+++ b/src/Compiler/Service/ServiceStructure.fs
@@ -263,7 +263,7 @@ module Structure =
                 rcheck Scope.For Collapse.Below r r
                 parseExpr e
 
-            | SynExpr.LetOrUse(bindings = bindings; body = body) ->
+            | SynExpr.LetOrUse({ Bindings = bindings; Body = body }) ->
                 parseBindings bindings
                 parseExpr body
 
@@ -571,7 +571,7 @@ module Structure =
                 |> Option.map (fun b -> SynMemberDefn.Member(b, m))
                 |> Option.iter (parseSynMemberDefn objectModelRange)
 
-            | SynMemberDefn.LetBindings(bindings, _, _, _) -> parseBindings bindings
+            | SynMemberDefn.LetBindings(bindings = bindings) -> parseBindings bindings
 
             | SynMemberDefn.Interface(interfaceType = tp; members = iMembers; range = r) ->
                 rcheck Scope.Interface Collapse.Below d.Range (Range.endToEnd tp.Range d.Range)
@@ -772,7 +772,7 @@ module Structure =
 
         let rec parseDeclaration (decl: SynModuleDecl) =
             match decl with
-            | SynModuleDecl.Let(_, bindings, r) ->
+            | SynModuleDecl.Let(bindings = bindings; range = r) ->
                 for binding in bindings do
                     let collapse = Range.endToEnd binding.RangeOfBindingWithoutRhs r
                     rcheck Scope.LetOrUse Collapse.Below r collapse
diff --git a/src/Compiler/Service/ServiceXmlDocParser.fs b/src/Compiler/Service/ServiceXmlDocParser.fs
index f320606cb33..a57f1485617 100644
--- a/src/Compiler/Service/ServiceXmlDocParser.fs
+++ b/src/Compiler/Service/ServiceXmlDocParser.fs
@@ -82,7 +82,7 @@ module XmlDocParsing =
                 | SynModuleDecl.NestedModule(decls = decls) ->
                     for decl in decls do
                         yield! getXmlDocablesSynModuleDecl decl
-                | SynModuleDecl.Let(_, synBindingList, range) ->
+                | SynModuleDecl.Let(bindings = synBindingList; range = range) ->
                     let anyXmlDoc =
                         synBindingList
                         |> List.exists (fun (SynBinding(xmlDoc = preXmlDoc)) -> not (isEmptyXmlDoc preXmlDoc))
diff --git a/src/Compiler/Service/SynExpr.fs b/src/Compiler/Service/SynExpr.fs
index 9fd1b3a888a..4a020cd3835 100644
--- a/src/Compiler/Service/SynExpr.fs
+++ b/src/Compiler/Service/SynExpr.fs
@@ -420,7 +420,7 @@ module SynExpr =
                 | SynExpr.DotNamedIndexedPropertySet(rhsExpr = expr)
                 | SynExpr.DotIndexedSet(valueExpr = expr)
                 | SynExpr.LongIdentSet(expr = expr)
-                | SynExpr.LetOrUse(body = expr)
+                | SynExpr.LetOrUse({ Body = expr })
                 | SynExpr.Lambda(body = expr)
                 | SynExpr.Match(clauses = Last(SynMatchClause(resultExpr = expr)))
                 | SynExpr.MatchLambda(matchClauses = Last(SynMatchClause(resultExpr = expr)))
@@ -1135,7 +1135,7 @@ module SynExpr =
             | SynExpr.ForEach(bodyExpr = Is inner), SynExpr.Typed _
             | SynExpr.Match _, SynExpr.Typed _
             | SynExpr.Do _, SynExpr.Typed _
-            | SynExpr.LetOrUse(body = Is inner), SynExpr.Typed _
+            | SynExpr.LetOrUse({ Body = Is inner }), SynExpr.Typed _
             | SynExpr.TryWith _, SynExpr.Typed _
             | SynExpr.TryFinally _, SynExpr.Typed _ -> false
             | _, SynExpr.Typed _ -> true
@@ -1164,7 +1164,8 @@ module SynExpr =
 
                 ambiguous || dangling inner
 
-            | OuterBinaryExpr inner (_, Right), (SynExpr.Sequential _ | SynExpr.LetOrUse(trivia = { InKeyword = None })) -> true
+            | OuterBinaryExpr inner (_, Right), (SynExpr.Sequential _) -> true
+            | OuterBinaryExpr inner (_, Right), (SynExpr.LetOrUse({ Trivia = { InKeyword = None } })) -> true
             | OuterBinaryExpr inner (_, Right), inner -> dangling inner
 
             // new T(expr)
diff --git a/src/Compiler/Service/SynPat.fs b/src/Compiler/Service/SynPat.fs
index 459f1586da4..a94b617aed9 100644
--- a/src/Compiler/Service/SynPat.fs
+++ b/src/Compiler/Service/SynPat.fs
@@ -72,6 +72,11 @@ module SynPat =
         | SynPat.QuoteExpr _ -> ValueSome Atomic
         | _ -> ValueNone
 
+    let (|LetOrUseBang|_|) =
+        function
+        | SynExpr.LetOrUse letOrUse when letOrUse.IsBang -> ValueSome()
+        | _ -> ValueNone
+
     let shouldBeParenthesizedInContext path pat : bool =
         match pat, path with
         // Parens are needed in:
@@ -92,17 +97,17 @@ module SynPat =
         //     set (x: …, y: …) = …
         | SynPat.Typed _, SyntaxNode.SynPat(Rightmost(SynPat.Paren(Is pat, _))) :: SyntaxNode.SynMatchClause _ :: _
         | Rightmost(SynPat.Typed _), SyntaxNode.SynMatchClause _ :: _
-        | SynPat.Typed _, SyntaxNode.SynExpr(SynExpr.LetOrUse(isBang = true)) :: _
-        | SynPat.Typed _, SyntaxNode.SynPat(SynPat.Tuple(isStruct = false)) :: SyntaxNode.SynExpr(SynExpr.LetOrUse(isBang = true)) :: _
-        | SynPat.Tuple(isStruct = false; elementPats = AnyTyped), SyntaxNode.SynExpr(SynExpr.LetOrUse(isBang = true)) :: _
+        | SynPat.Typed _, SyntaxNode.SynExpr(LetOrUseBang) :: _
+        | SynPat.Typed _, SyntaxNode.SynPat(SynPat.Tuple(isStruct = false)) :: SyntaxNode.SynExpr(LetOrUseBang) :: _
+        | SynPat.Tuple(isStruct = false; elementPats = AnyTyped), SyntaxNode.SynExpr(LetOrUseBang) :: _
         | SynPat.Typed _, SyntaxNode.SynPat(SynPat.Tuple(isStruct = false)) :: SyntaxNode.SynBinding _ :: _
         | SynPat.Tuple(isStruct = false; elementPats = AnyTyped), SyntaxNode.SynBinding _ :: _
 
         //     let! (_ : obj) = …
-        | SynPat.Typed _, SyntaxNode.SynBinding _ :: SyntaxNode.SynExpr(SynExpr.LetOrUse(isBang = true)) :: _ -> true
+        | SynPat.Typed _, SyntaxNode.SynBinding _ :: SyntaxNode.SynExpr(LetOrUseBang) :: _ -> true
 
         //     let! (A _) = …
-        | SynPat.LongIdent _, SyntaxNode.SynBinding _ :: SyntaxNode.SynExpr(SynExpr.LetOrUse(isBang = true)) :: _ -> false
+        | SynPat.LongIdent _, SyntaxNode.SynBinding _ :: SyntaxNode.SynExpr(LetOrUseBang) :: _ -> false
         | SynPat.LongIdent(argPats = SynArgPats.Pats(_ :: _)), SyntaxNode.SynBinding _ :: _
         | SynPat.LongIdent(argPats = SynArgPats.Pats(_ :: _)), SyntaxNode.SynExpr(SynExpr.Lambda _) :: _
         | SynPat.Tuple(isStruct = false), SyntaxNode.SynExpr(SynExpr.Lambda(parsedData = Some _)) :: _
@@ -149,7 +154,7 @@ module SynPat =
                     | SyntaxNode.SynPat _ :: path -> wouldMoveRhsOffsides (n + 1) pat path
 
                     | SyntaxNode.SynExpr(SynExpr.Lambda(body = rhs)) :: _
-                    | SyntaxNode.SynExpr(SynExpr.LetOrUse(body = rhs)) :: _
+                    | SyntaxNode.SynExpr(SynExpr.LetOrUse({ Body = rhs })) :: _
                     | SyntaxNode.SynBinding(SynBinding(expr = rhs)) :: _
                     | SyntaxNode.SynMatchClause(SynMatchClause(resultExpr = rhs)) :: _ ->
                         let rhsRange = rhs.Range
@@ -248,7 +253,7 @@ module SynPat =
         //     fun (x) -> …
         | _, SyntaxNode.SynBinding _ :: _
         | _, SyntaxNode.SynExpr(SynExpr.ForEach _) :: _
-        | _, SyntaxNode.SynExpr(SynExpr.LetOrUse(isBang = true)) :: _
+        | _, SyntaxNode.SynExpr(LetOrUseBang) :: _
         | _, SyntaxNode.SynMatchClause _ :: _
         | Atomic, SyntaxNode.SynExpr(SynExpr.Lambda(parsedData = Some _)) :: _ -> false
 
diff --git a/src/Compiler/SyntaxTree/ParseHelpers.fs b/src/Compiler/SyntaxTree/ParseHelpers.fs
index 9df29ddbf79..db946e539cb 100644
--- a/src/Compiler/SyntaxTree/ParseHelpers.fs
+++ b/src/Compiler/SyntaxTree/ParseHelpers.fs
@@ -824,7 +824,7 @@ let checkEndOfFileError t =
 type BindingSet = BindingSetPreAttrs of range * bool * bool * (SynAttributes -> SynAccess option -> SynAttributes * SynBinding list) * range
 
 let mkClassMemberLocalBindings
-    (isStatic, initialRangeOpt, attrs, vis, BindingSetPreAttrs(_, isRec, isUse, declsPreAttrs, bindingSetRange))
+    (isStatic, initialRangeOpt, attrs, vis, BindingSetPreAttrs(_, isRec, isUse, declsPreAttrs, bindingSetRange), mIn)
     =
     let ignoredFreeAttrs, decls = declsPreAttrs attrs vis
 
@@ -834,6 +834,10 @@ let mkClassMemberLocalBindings
         | Some m -> unionRanges m bindingSetRange
         // decls could have a leading attribute
         |> fun m -> (m, decls) ||> unionRangeWithListBy (fun (SynBinding(range = m)) -> m)
+        |> fun m ->
+            match mIn with
+            | None -> m
+            | Some mIn -> unionRanges m mIn
 
     if not (isNil ignoredFreeAttrs) then
         warning (Error(FSComp.SR.parsAttributesIgnored (), mWhole))
@@ -865,18 +869,16 @@ let mkClassMemberLocalBindings
             SynBinding(a0, k, il, im, a, x, v, h, ri, e, m, dp, trivia) :: rest
         | None, decls -> decls
 
-    SynMemberDefn.LetBindings(decls, isStatic, isRec, mWhole)
+    SynMemberDefn.LetBindings(decls, isStatic, isRec, mWhole, { InKeyword = mIn })
 
 /// Creates a SynExprAndBang node for and! bindings in computation expressions
-let mkAndBang
-    (mKeyword: range, pat: SynPat, returnInfo: SynBindingReturnInfo option, rhs: SynExpr, mWhole: range, mEquals: range, mIn: range option)
-    =
+let mkAndBang (mKeyword: range, pat: SynPat, returnInfo: SynBindingReturnInfo option, rhs: SynExpr, mWhole: range, mEquals: range) =
     let spBind = DebugPointAtBinding.Yes(unionRanges mKeyword rhs.Range)
 
     let trivia: SynBindingTrivia =
         {
-            LeadingKeyword = SynLeadingKeyword.And mKeyword
-            InlineKeyword = mIn
+            LeadingKeyword = SynLeadingKeyword.AndBang mKeyword
+            InlineKeyword = None
             EqualsRange = Some mEquals
         }
 
@@ -896,16 +898,21 @@ let mkAndBang
         trivia = trivia
     )
 
-let mkDefnBindings (mWhole, BindingSetPreAttrs(_, isRec, isUse, declsPreAttrs, _bindingSetRange), attrs, vis, attrsm) =
+let mkDefnBindings (mWhole, BindingSetPreAttrs(_, isRec, isUse, declsPreAttrs, _bindingSetRange), attrs, vis, attrsm, mIn) =
     if isUse then
         warning (Error(FSComp.SR.parsUseBindingsIllegalInModules (), mWhole))
 
     let freeAttrs, decls = declsPreAttrs attrs vis
     // decls might have an extended range due to leading attributes
     let mWhole =
-        (mWhole, decls) ||> unionRangeWithListBy (fun (SynBinding(range = m)) -> m)
+        (mWhole, decls)
+        ||> unionRangeWithListBy (fun (SynBinding(range = m)) -> m)
+        |> fun m ->
+            match mIn with
+            | None -> m
+            | Some mIn -> unionRanges m mIn
 
-    let letDecls = [ SynModuleDecl.Let(isRec, decls, mWhole) ]
+    let letDecls = [ SynModuleDecl.Let(isRec, decls, mWhole, { InKeyword = mIn }) ]
 
     let attrDecls =
         if not (isNil freeAttrs) then
@@ -1067,108 +1074,67 @@ let leadingKeywordIsAbstract =
     | SynLeadingKeyword.StaticAbstractMember _ -> true
     | _ -> false
 
-/// Unified helper for creating let/let!/use/use! expressions
-/// Creates SynExpr.LetOrUse based on isBang parameter
-/// Handles all four cases: 'let', 'let!', 'use', and 'use!'
-let mkLetExpression
+let mkLetExpression (mIn: range option, mWhole: range, body: SynExpr, bindingInfo: BindingSet) =
+    let (BindingSetPreAttrs(_, isRec, _isUse, declsPreAttrs, _)) = bindingInfo
+    let ignoredFreeAttrs, decls = declsPreAttrs [] None
+
+    let mWhole =
+        match decls with
+        | SynBinding(xmlDoc = xmlDoc) :: _ -> unionRangeWithXmlDoc xmlDoc mWhole
+        | _ -> mWhole
+
+    if not (isNil ignoredFreeAttrs) then
+        warning (Error(FSComp.SR.parsAttributesIgnored (), mWhole))
+
+    SynExpr.LetOrUse(
+        {
+            IsRecursive = isRec
+            Bindings = decls
+            Body = body
+            Range = mWhole
+            Trivia = { InKeyword = mIn }
+        }
+    )
+
+let mkLetBangExpression
     (
-        isBang: bool,
         mIn: range option,
         mWhole: range,
         body: SynExpr,
-        bindingInfo: BindingSet option,
-        bangInfo: (SynPat * SynBindingReturnInfo option * SynExpr * SynBinding list * range * range option * bool) option
+        bangInfo: (SynPat * SynBindingReturnInfo option * SynExpr * SynBinding list * SynLeadingKeyword * range option * bool)
     ) =
-    if isBang then
-        match bangInfo with
-        | Some(pat, returnInfo, rhs, andBangs, mKeyword, mEquals, isUse) ->
-            let spBind = DebugPointAtBinding.Yes(unionRanges mKeyword rhs.Range)
-
-            let trivia: SynBindingTrivia =
-                {
-                    LeadingKeyword =
-                        if isUse then
-                            SynLeadingKeyword.Use mKeyword
-                        else
-                            SynLeadingKeyword.Let mKeyword
-                    InlineKeyword = mIn
-                    EqualsRange = mEquals
-                }
-
-            let binding =
-                SynBinding(
-                    accessibility = None,
-                    kind = SynBindingKind.Normal,
-                    isInline = false,
-                    isMutable = false,
-                    attributes = [],
-                    xmlDoc = PreXmlDoc.Empty,
-                    valData = SynInfo.emptySynValData,
-                    headPat = pat,
-                    returnInfo = returnInfo,
-                    expr = rhs,
-                    range = unionRanges mKeyword rhs.Range,
-                    debugPoint = spBind,
-                    trivia = trivia
-                )
+    let (pat, returnInfo, rhs, andBangs, leadingKeyword, mEquals, _isUse) = bangInfo
+    let spBind = DebugPointAtBinding.Yes(unionRanges leadingKeyword.Range rhs.Range)
 
-            SynExpr.LetOrUse(
-                isRecursive = false,
-                isUse = isUse,
-                isFromSource = true,
-                isBang = true,
-                bindings = binding :: andBangs,
-                body = body,
-                range = mWhole,
-                trivia =
-                    {
-                        LetOrUseKeyword = mKeyword
-                        InKeyword = mIn
-                        EqualsRange = mEquals
-                    }
-            )
+    let trivia: SynBindingTrivia =
+        {
+            LeadingKeyword = leadingKeyword
+            InlineKeyword = None
+            EqualsRange = mEquals
+        }
 
-        | None -> SynExpr.FromParseError(body, mWhole)
-    else
-        match bindingInfo with
-        | Some(BindingSetPreAttrs(_, isRec, isUse, declsPreAttrs, _)) ->
-            let ignoredFreeAttrs, decls = declsPreAttrs [] None
-
-            let mWhole =
-                match decls with
-                | SynBinding(xmlDoc = xmlDoc) :: _ -> unionRangeWithXmlDoc xmlDoc mWhole
-                | _ -> mWhole
-
-            if not (isNil ignoredFreeAttrs) then
-                warning (Error(FSComp.SR.parsAttributesIgnored (), mWhole))
-
-            let mIn' =
-                mIn
-                |> Option.bind (fun (mIn: range) -> if posEq mIn.Start body.Range.Start then None else Some mIn)
-
-            let mLetOrUse =
-                match decls with
-                | SynBinding(trivia = trivia) :: _ -> trivia.LeadingKeyword.Range
-                | _ -> range0
-
-            let mEquals =
-                match decls with
-                | SynBinding(trivia = trivia) :: _ -> trivia.EqualsRange
-                | _ -> None
-
-            SynExpr.LetOrUse(
-                isRecursive = isRec,
-                isUse = isUse,
-                isFromSource = true,
-                isBang = false,
-                bindings = decls,
-                body = body,
-                range = mWhole,
-                trivia =
-                    {
-                        LetOrUseKeyword = mLetOrUse
-                        InKeyword = mIn'
-                        EqualsRange = mEquals
-                    }
-            )
-        | None -> SynExpr.FromParseError(body, mWhole)
+    let binding =
+        SynBinding(
+            accessibility = None,
+            kind = SynBindingKind.Normal,
+            isInline = false,
+            isMutable = false,
+            attributes = [],
+            xmlDoc = PreXmlDoc.Empty,
+            valData = SynInfo.emptySynValData,
+            headPat = pat,
+            returnInfo = returnInfo,
+            expr = rhs,
+            range = unionRanges leadingKeyword.Range rhs.Range,
+            debugPoint = spBind,
+            trivia = trivia
+        )
+
+    SynExpr.LetOrUse
+        {
+            IsRecursive = false
+            Bindings = binding :: andBangs
+            Body = body
+            Range = mWhole
+            Trivia = { InKeyword = mIn }
+        }
diff --git a/src/Compiler/SyntaxTree/ParseHelpers.fsi b/src/Compiler/SyntaxTree/ParseHelpers.fsi
index c8c2ece5d44..637516d56ca 100644
--- a/src/Compiler/SyntaxTree/ParseHelpers.fsi
+++ b/src/Compiler/SyntaxTree/ParseHelpers.fsi
@@ -193,18 +193,26 @@ type BindingSet =
         range
 
 val mkClassMemberLocalBindings:
-    isStatic: bool * initialRangeOpt: range option * attrs: SynAttributes * vis: SynAccess option * BindingSet ->
+    isStatic: bool *
+    initialRangeOpt: range option *
+    attrs: SynAttributes *
+    vis: SynAccess option *
+    bindingSet: BindingSet *
+    mIn: range option ->
         SynMemberDefn
 
 /// Creates SynExpr.LetOrUse based on isBang parameter
-/// Handles all four cases: 'let', 'let!', 'use', and 'use!'
-val mkLetExpression:
-    isBang: bool *
+/// Handles 'let' and 'use'
+val mkLetExpression: mIn: range option * mWhole: range * body: SynExpr * bindingInfo: BindingSet -> SynExpr
+
+/// Helper for creating let!/use! expressions
+/// Handles 'let!' and 'use!'
+val mkLetBangExpression:
     mIn: range option *
     mWhole: range *
     body: SynExpr *
-    bindingInfo: BindingSet option *
-    bangInfo: (SynPat * SynBindingReturnInfo option * SynExpr * SynBinding list * range * range option * bool) option ->
+    bangInfo:
+        (SynPat * SynBindingReturnInfo option * SynExpr * SynBinding list * SynLeadingKeyword * range option * bool) ->
         SynExpr
 
 val mkAndBang:
@@ -213,12 +221,12 @@ val mkAndBang:
     returnInfo: SynBindingReturnInfo option *
     rhs: SynExpr *
     mWhole: range *
-    mEquals: range *
-    mIn: range option ->
+    mEquals: range ->
         SynBinding
 
 val mkDefnBindings:
-    mWhole: range * BindingSet * attrs: SynAttributes * vis: SynAccess option * attrsm: range -> SynModuleDecl list
+    mWhole: range * BindingSet * attrs: SynAttributes * vis: SynAccess option * attrsm: range * mIn: range option ->
+        SynModuleDecl list
 
 val idOfPat: parseState: IParseState -> m: range -> p: SynPat -> Ident
 
diff --git a/src/Compiler/SyntaxTree/SyntaxTree.fs b/src/Compiler/SyntaxTree/SyntaxTree.fs
index 0e621c0be34..8d74c063a51 100644
--- a/src/Compiler/SyntaxTree/SyntaxTree.fs
+++ b/src/Compiler/SyntaxTree/SyntaxTree.fs
@@ -718,15 +718,7 @@ type SynExpr =
 
     | YieldOrReturnFrom of flags: (bool * bool) * expr: SynExpr * range: range * trivia: SynExprYieldOrReturnFromTrivia
 
-    | LetOrUse of
-        isRecursive: bool *
-        isUse: bool *
-        isFromSource: bool *
-        isBang: bool *
-        bindings: SynBinding list *
-        body: SynExpr *
-        range: range *
-        trivia: SynExprLetOrUseTrivia
+    | LetOrUse of SynLetOrUse
 
     | MatchBang of
         matchDebugPoint: DebugPointAtBinding *
@@ -794,7 +786,7 @@ type SynExpr =
         | SynExpr.Assert(range = m)
         | SynExpr.App(range = m)
         | SynExpr.TypeApp(range = m)
-        | SynExpr.LetOrUse(range = m)
+        | SynExpr.LetOrUse({ Range = m })
         | SynExpr.TryWith(range = m)
         | SynExpr.TryFinally(range = m)
         | SynExpr.Sequential(range = m)
@@ -1123,6 +1115,57 @@ type SynBinding =
 
     member x.Trivia = let (SynBinding(trivia = trivia)) = x in trivia
 
+/// Represents a 'let' or 'use' expression with its bindings and body
+[<NoEquality; NoComparison>]
+type SynLetOrUse =
+    {
+        /// true for 'let rec' and 'use rec' bindings, false for 'let' and 'use' bindings
+        IsRecursive: bool
+
+        /// The bindings in this let/use expression
+        Bindings: SynBinding list
+
+        /// The body expression
+        Body: SynExpr
+
+        /// The syntax range of this expression
+        Range: range
+
+        /// Trivia for this expression
+        Trivia: SynLetOrUseTrivia
+    }
+
+    /// true for 'use' and 'use!' bindings, false for 'let' and 'let!' bindings
+    member this.IsUse =
+        match this.Bindings with
+        | firstBinding :: _ ->
+            match firstBinding.Trivia.LeadingKeyword with
+            | SynLeadingKeyword.Use _
+            | SynLeadingKeyword.UseBang _
+            | SynLeadingKeyword.UseRec _ -> true
+            | _ -> false
+        | [] -> false
+
+    /// true for 'let!' and 'use!' bindings, false for 'let' and 'use' bindings
+    member this.IsBang =
+        match this.Bindings with
+        | firstBinding :: _ ->
+            match firstBinding.Trivia.LeadingKeyword with
+            | SynLeadingKeyword.LetBang _
+            | SynLeadingKeyword.UseBang _
+            | SynLeadingKeyword.AndBang _ -> true
+            | _ -> false
+        | [] -> false
+
+    /// true if the binding was explicitly written by the user in the source code, false if generated by the compiler
+    member this.IsFromSource =
+        match this.Bindings with
+        | firstBinding :: _ ->
+            match firstBinding.Trivia.LeadingKeyword with
+            | SynLeadingKeyword.Synthetic -> false
+            | _ -> true
+        | [] -> true
+
 [<NoEquality; NoComparison>]
 type SynBindingReturnInfo =
     | SynBindingReturnInfo of typeName: SynType * range: range * attributes: SynAttributes * trivia: SynBindingReturnInfoTrivia
@@ -1509,7 +1552,7 @@ type SynMemberDefn =
         range: range *
         trivia: SynMemberDefnInheritTrivia
 
-    | LetBindings of bindings: SynBinding list * isStatic: bool * isRecursive: bool * range: range
+    | LetBindings of bindings: SynBinding list * isStatic: bool * isRecursive: bool * range: range * trivia: SynMemberDefnLetBindingsTrivia
 
     | AbstractSlot of slotSig: SynValSig * flags: SynMemberFlags * range: range * trivia: SynMemberDefnAbstractSlotTrivia
 
@@ -1565,7 +1608,7 @@ type SynModuleDecl =
         range: range *
         trivia: SynModuleDeclNestedModuleTrivia
 
-    | Let of isRecursive: bool * bindings: SynBinding list * range: range
+    | Let of isRecursive: bool * bindings: SynBinding list * range: range * trivia: SynModuleDeclLetTrivia
 
     | Expr of expr: SynExpr * range: range
 
diff --git a/src/Compiler/SyntaxTree/SyntaxTree.fsi b/src/Compiler/SyntaxTree/SyntaxTree.fsi
index 16745c78736..ca80390b881 100644
--- a/src/Compiler/SyntaxTree/SyntaxTree.fsi
+++ b/src/Compiler/SyntaxTree/SyntaxTree.fsi
@@ -559,6 +559,35 @@ type SynType =
     member Range: range
 
 /// Represents a syntax tree for F# expressions
+/// Represents a 'let' or 'use' expression with its bindings and body
+[<NoEquality; NoComparison>]
+type SynLetOrUse =
+    {
+        /// true for 'let rec' and 'use rec' bindings, false for 'let' and 'use' bindings
+        IsRecursive: bool
+
+        /// The bindings in this let/use expression
+        Bindings: SynBinding list
+
+        /// The body expression
+        Body: SynExpr
+
+        /// The syntax range of this expression
+        Range: range
+
+        /// Trivia for this expression
+        Trivia: SynLetOrUseTrivia
+    }
+
+    /// true for 'use' and 'use!' bindings, false for 'let' and 'let!' bindings
+    member IsUse: bool
+
+    /// true for 'let!' and 'use!' bindings, false for 'let' and 'use' bindings
+    member IsBang: bool
+
+    /// true if the binding was explicitly written by the user in the source code, false if generated by the compiler
+    member IsFromSource: bool
+
 [<NoEquality; NoComparison; RequireQualifiedAccess>]
 type SynExpr =
 
@@ -881,19 +910,7 @@ type SynExpr =
     /// F# syntax: let! pat = expr in expr
     /// F# syntax: use! pat = expr in expr
     /// F# syntax: let! pat = expr and! ... and! ... and! pat = expr in expr
-    | LetOrUse of
-        // isRecursive: true for 'let rec' and 'use rec' bindings, false for 'let' and 'use' bindings
-        isRecursive: bool *
-        /// isUse: true for 'use' and 'use!' bindings, false for 'let' and 'let!'
-        isUse: bool *
-        // isFromSource: flag indicates whether a binding was explicitly written by the user in the source code versus generated by the compiler during transformations.
-        isFromSource: bool *
-        // isBang: true for 'let!' and 'use!' bindings, false for 'let' and 'use' bindings
-        isBang: bool *
-        bindings: SynBinding list *
-        body: SynExpr *
-        range: range *
-        trivia: SynExprLetOrUseTrivia
+    | LetOrUse of SynLetOrUse
 
     /// F# syntax: match! expr with pat1 -> expr | ... | patN -> exprN
     | MatchBang of
@@ -1671,7 +1688,12 @@ type SynMemberDefn =
         trivia: SynMemberDefnInheritTrivia
 
     /// A 'let' definition within a class
-    | LetBindings of bindings: SynBinding list * isStatic: bool * isRecursive: bool * range: range
+    | LetBindings of
+        bindings: SynBinding list *
+        isStatic: bool *
+        isRecursive: bool *
+        range: range *
+        trivia: SynMemberDefnLetBindingsTrivia
 
     /// An abstract slot definition within a class or interface
     | AbstractSlot of
@@ -1729,7 +1751,7 @@ type SynModuleDecl =
         trivia: SynModuleDeclNestedModuleTrivia
 
     /// A 'let' definition within a module
-    | Let of isRecursive: bool * bindings: SynBinding list * range: range
+    | Let of isRecursive: bool * bindings: SynBinding list * range: range * trivia: SynModuleDeclLetTrivia
 
     /// An 'expr' within a module.
     | Expr of expr: SynExpr * range: range
diff --git a/src/Compiler/SyntaxTree/SyntaxTreeOps.fs b/src/Compiler/SyntaxTree/SyntaxTreeOps.fs
index 29b3b6a1ff6..a5e1d79731e 100644
--- a/src/Compiler/SyntaxTree/SyntaxTreeOps.fs
+++ b/src/Compiler/SyntaxTree/SyntaxTreeOps.fs
@@ -955,7 +955,7 @@ let rec synExprContainsError inpExpr =
         | SynExpr.Match(expr = e; clauses = cl)
         | SynExpr.MatchBang(expr = e; clauses = cl) -> walkExpr e || walkMatchClauses cl
 
-        | SynExpr.LetOrUse(bindings = bs; body = e) -> walkBinds bs || walkExpr e
+        | SynExpr.LetOrUse({ Bindings = bs; Body = e }) -> walkBinds bs || walkExpr e
 
         | SynExpr.TryWith(tryExpr = e; withCases = cl) -> walkExpr e || walkMatchClauses cl
 
diff --git a/src/Compiler/SyntaxTree/SyntaxTrivia.fs b/src/Compiler/SyntaxTree/SyntaxTrivia.fs
index 6734010660c..0c325333212 100644
--- a/src/Compiler/SyntaxTree/SyntaxTrivia.fs
+++ b/src/Compiler/SyntaxTree/SyntaxTrivia.fs
@@ -90,19 +90,12 @@ type SynExprDotLambdaTrivia =
     }
 
 [<NoEquality; NoComparison>]
-type SynExprLetOrUseTrivia =
+type SynLetOrUseTrivia =
     {
-        LetOrUseKeyword: range
         InKeyword: range option
-        EqualsRange: range option
     }
 
-    static member Zero: SynExprLetOrUseTrivia =
-        {
-            InKeyword = None
-            LetOrUseKeyword = range0
-            EqualsRange = None
-        }
+    static member Zero: SynLetOrUseTrivia = { InKeyword = None }
 
 [<NoEquality; NoComparison>]
 type SynExprMatchTrivia =
@@ -220,9 +213,12 @@ type SynTypeDefnSigTrivia =
 [<NoEquality; NoComparison; RequireQualifiedAccess>]
 type SynLeadingKeyword =
     | Let of letRange: range
+    | LetBang of letBangRange: range
     | LetRec of letRange: range * recRange: range
     | And of andRange: range
+    | AndBang of andBangRange: range
     | Use of useRange: range
+    | UseBang of useBangRange: range
     | UseRec of useRange: range * recRange: range
     | Extern of externRange: range
     | Member of memberRange: range
@@ -250,8 +246,11 @@ type SynLeadingKeyword =
     member this.Range =
         match this with
         | Let m
+        | LetBang m
         | And m
+        | AndBang m
         | Use m
+        | UseBang m
         | Extern m
         | Member m
         | Override m
@@ -318,6 +317,15 @@ type SynModuleSigDeclNestedModuleTrivia =
             EqualsRange = None
         }
 
+[<NoEquality; NoComparison>]
+type SynModuleDeclLetTrivia =
+    {
+        // The syntax range of the `in` keyword.
+        InKeyword: range option
+    }
+
+    static member Zero: SynModuleDeclLetTrivia = { InKeyword = None }
+
 [<NoEquality; NoComparison; RequireQualifiedAccess>]
 type SynModuleOrNamespaceLeadingKeyword =
     | Module of moduleRange: range
@@ -397,6 +405,14 @@ type SynMemberDefnAutoPropertyTrivia =
         GetSetKeywords: GetSetKeywords option
     }
 
+[<NoEquality; NoComparison>]
+type SynMemberDefnLetBindingsTrivia =
+    {
+        InKeyword: range option
+    }
+
+    static member Zero: SynMemberDefnLetBindingsTrivia = { InKeyword = None }
+
 [<NoEquality; NoComparison>]
 type SynMemberDefnAbstractSlotTrivia =
     {
diff --git a/src/Compiler/SyntaxTree/SyntaxTrivia.fsi b/src/Compiler/SyntaxTree/SyntaxTrivia.fsi
index c690a6ac018..d61cbdae1d4 100644
--- a/src/Compiler/SyntaxTree/SyntaxTrivia.fsi
+++ b/src/Compiler/SyntaxTree/SyntaxTrivia.fsi
@@ -126,17 +126,13 @@ type SynExprDotLambdaTrivia =
 
 /// Represents additional information for SynExpr.LetOrUse
 [<NoEquality; NoComparison>]
-type SynExprLetOrUseTrivia =
+type SynLetOrUseTrivia =
     {
-        /// The syntax range of the `let` or `use` keyword.
-        LetOrUseKeyword: range
         /// The syntax range of the `in` keyword.
         InKeyword: range option
-
-        EqualsRange: range option
     }
 
-    static member Zero: SynExprLetOrUseTrivia
+    static member Zero: SynLetOrUseTrivia
 
 /// Represents additional information for SynExpr.Match
 [<NoEquality; NoComparison>]
@@ -306,9 +302,12 @@ type SynTypeDefnSigTrivia =
 [<NoEquality; NoComparison; RequireQualifiedAccess>]
 type SynLeadingKeyword =
     | Let of letRange: range
+    | LetBang of letBangRange: range
     | LetRec of letRange: range * recRange: range
     | And of andRange: range
+    | AndBang of andBangRange: range
     | Use of useRange: range
+    | UseBang of useBangRange: range
     | UseRec of useRange: range * recRange: range
     | Extern of externRange: range
     | Member of memberRange: range
@@ -377,6 +376,16 @@ type SynModuleSigDeclNestedModuleTrivia =
 
     static member Zero: SynModuleSigDeclNestedModuleTrivia
 
+/// Represents additional information for SynModuleDecl.Let
+[<NoEquality; NoComparison>]
+type SynModuleDeclLetTrivia =
+    {
+        /// The syntax range of the `in` keyword.
+        InKeyword: range option
+    }
+
+    static member Zero: SynModuleDeclLetTrivia
+
 /// Represents the leading keyword in a SynModuleOrNamespace or SynModuleOrNamespaceSig
 [<NoEquality; NoComparison; RequireQualifiedAccess>]
 type SynModuleOrNamespaceLeadingKeyword =
@@ -491,6 +500,13 @@ type SynMemberDefnAutoPropertyTrivia =
         GetSetKeywords: GetSetKeywords option
     }
 
+/// Represents additional information for SynMemberDefn.LetBindings
+[<NoEquality; NoComparison>]
+type SynMemberDefnLetBindingsTrivia =
+    { InKeyword: range option }
+
+    static member Zero: SynMemberDefnLetBindingsTrivia
+
 ///  Represents additional information for SynMemberDefn.AbstractSlot
 [<NoEquality; NoComparison>]
 type SynMemberDefnAbstractSlotTrivia =
diff --git a/src/Compiler/pars.fsy b/src/Compiler/pars.fsy
index 5abe2d82a07..3ade5e4e8c0 100644
--- a/src/Compiler/pars.fsy
+++ b/src/Compiler/pars.fsy
@@ -1308,20 +1308,20 @@ moduleDefn:
       { if Option.isSome $2 then errorR(Error(FSComp.SR.parsVisibilityDeclarationsShouldComePriorToIdentifier(), rhs parseState 2))
         (getSynArgNameGenerator parseState.LexBuffer).Reset()
         let (BindingSetPreAttrs(_, _, _, _, mWhole)) = $3
-        mkDefnBindings (mWhole, $3, $1, $2, mWhole) }
+        mkDefnBindings (mWhole, $3, $1, $2, mWhole, None) }
 
   /* 'let' or 'do' definitions in #light */
   | opt_attributes opt_access hardwhiteLetBindings %prec decl_let
-      { let hwlb, m, _ = $3
+      { let hwlb, m, mIn = $3
         if Option.isSome $2 then errorR(Error(FSComp.SR.parsVisibilityDeclarationsShouldComePriorToIdentifier(), rhs parseState 2))
         (getSynArgNameGenerator parseState.LexBuffer).Reset()
-        mkDefnBindings (m, hwlb, $1, $2, m) }
+        mkDefnBindings (m, hwlb, $1, $2, m, mIn) }
 
   /* 'do' definitions in non-#light*/
   | opt_attributes opt_access doBinding %prec decl_let
       { if Option.isSome $2 then errorR(Error(FSComp.SR.parsVisibilityDeclarationsShouldComePriorToIdentifier(), rhs parseState 2))
         let mWhole = rhs parseState 3
-        mkDefnBindings (mWhole, $3, $1, $2, mWhole) }
+        mkDefnBindings (mWhole, $3, $1, $2, mWhole, None) }
 
   /* 'type' definitions */
   | opt_attributes opt_access typeKeyword tyconDefn tyconDefnList
@@ -2002,11 +2002,13 @@ abstractMemberFlags:
 classDefnMember:
   | opt_attributes opt_access classDefnBindings
      { if Option.isSome $2 then errorR(Error(FSComp.SR.parsVisibilityDeclarationsShouldComePriorToIdentifier(), rhs parseState 2))
-       [mkClassMemberLocalBindings(false, None, $1, $2, $3)] }
+       let bindingSet, mIn = $3
+       [mkClassMemberLocalBindings(false, None, $1, $2, bindingSet, mIn)] }
 
   | opt_attributes opt_access STATIC classDefnBindings
      { if Option.isSome $2 then errorR(Error(FSComp.SR.parsVisibilityDeclarationsShouldComePriorToIdentifier(), rhs parseState 2))
-       [mkClassMemberLocalBindings(true, Some(rhs parseState 3), $1, $2, $4)] }
+       let bindingSet, mIn = $4
+       [mkClassMemberLocalBindings(true, Some(rhs parseState 3), $1, $2, bindingSet, mIn)] }
 
   | opt_attributes opt_access memberFlags memberCore opt_ODECLEND
      { let rangeStart = rhs parseState 1
@@ -3147,17 +3149,17 @@ hardwhiteDoBinding:
 /* The bindings in a class type definition */
 classDefnBindings:
   | defnBindings
-     { $1 }
+     { $1, None }
 
   | doBinding
-     { $1 }
+     { $1, None }
 
   | hardwhiteLetBindings
-     { let b, m, _ = $1
-       b }
+     { let b, m, mIn = $1
+       b, mIn }
 
   | hardwhiteDoBinding
-     { fst $1 }
+     { fst $1, None }
 
 
 /* The terminator for a 'let ....' binding in the #light syntax */
@@ -4120,7 +4122,7 @@ sequentialExpr:
        let usedKeyword = if isUse then "use" else "let"
        reportParseErrorAt mLetKwd (FSComp.SR.parsExpectedExpressionAfterLet(usedKeyword, usedKeyword))
        let fauxRange = m.EndRange // zero width range at end of m
-       mkLetExpression(false, mIn, m, arbExpr ("seqExpr", fauxRange), Some bindingSet, None) }
+       mkLetExpression(mIn, m, arbExpr ("seqExpr", fauxRange), bindingSet) }
 
 /* Use this as the last terminal when performing error recovery */
 /* The contract for using this is that (a) if EOF occurs then the */
@@ -4144,9 +4146,8 @@ moreBinders:
        let mKeyword = rhs parseState 1
        let mEquals = rhs parseState 3
        let m = unionRanges mKeyword $4.Range
-       let mIn = Some(rhs parseState 5)
        
-       mkAndBang(mKeyword, pat, returnInfo, $4, m, mEquals, mIn) :: $6 }
+       mkAndBang(mKeyword, pat, returnInfo, $4, m, mEquals) :: $6 }
 
   | OAND_BANG ceBindingCore EQUALS typedSequentialExprBlock hardwhiteDefnBindingsTerminator opt_OBLOCKSEP moreBinders %prec expr_let
      { // Offside-sensitive version of and! binding
@@ -4156,13 +4157,13 @@ moreBinders:
        if isInline then errorR(Error(FSComp.SR.parsInvalidDeclarationSyntax(), rhs parseState 2))
        if isMutable then errorR(Error(FSComp.SR.parsInvalidDeclarationSyntax(), rhs parseState 2))
        
-       let report, mIn, _ = $5
+       let report, _mIn, _ = $5
        report "and!" (rhs parseState 1)  // report unterminated error
        let mKeyword = rhs parseState 1
        let mEquals = rhs parseState 3
        let m = unionRanges mKeyword $4.Range
        
-       mkAndBang(mKeyword, pat, returnInfo, $4, m, mEquals, mIn) :: $7 }
+       mkAndBang(mKeyword, pat, returnInfo, $4, m, mEquals) :: $7 }
 
   | %prec prec_no_more_attr_bindings
       { [] }
@@ -4172,13 +4173,13 @@ declExpr:
      { let mIn = rhs parseState 2 |> Some
        let mWhole = unionRanges (rhs2 parseState 1 2) $3.Range
        let bindingSet = $1
-       mkLetExpression(false, mIn, mWhole, $3, Some bindingSet, None) }
+       mkLetExpression(mIn, mWhole, $3, bindingSet) }
 
   | defnBindings IN error %prec expr_let
      { let mIn = rhs parseState 2 |> Some
        let mWhole = rhs2 parseState 1 2
        let bindingSet = $1
-       mkLetExpression(false, mIn, mWhole, arbExpr ("declExpr1", (rhs parseState 3)), Some bindingSet, None) }
+       mkLetExpression(mIn, mWhole, arbExpr ("declExpr1", (rhs parseState 3)), bindingSet) }
 /*
     FSComp.SR.parsNoMatchingInForLet() -- leave this in for now - it's an unused error string
 */
@@ -4186,23 +4187,23 @@ declExpr:
   | hardwhiteLetBindings typedSequentialExprBlock %prec expr_let
      { let bindingSet, m, mIn = $1
        let mWhole = unionRanges m $2.Range
-       mkLetExpression(false, mIn, mWhole, $2, Some bindingSet, None) }
+       mkLetExpression(mIn, mWhole, $2, bindingSet) }
 
   | hardwhiteLetBindings error %prec expr_let
      { let bindingSet, m, mIn = $1
        reportParseErrorAt (match bindingSet with (BindingSetPreAttrs(m, _, _, _, _)) -> m) (FSComp.SR.parsErrorInReturnForLetIncorrectIndentation())
-       mkLetExpression(false, mIn, m, arbExpr ("declExpr2", (rhs parseState 2)), Some bindingSet, None) }
+       mkLetExpression(mIn, m, arbExpr ("declExpr2", (rhs parseState 2)), bindingSet) }
 
   | hardwhiteLetBindings OBLOCKSEP typedSequentialExprBlock %prec expr_let
      { let bindingSet, m, mIn = $1
        let mWhole = unionRanges m $3.Range
-       mkLetExpression(false, mIn, mWhole, $3, Some bindingSet, None) }
+       mkLetExpression(mIn, mWhole, $3, bindingSet) }
 
   | hardwhiteLetBindings OBLOCKSEP error %prec expr_let
      { let bindingSet, m, mIn = $1
        //reportParseErrorAt (match bindingSet with (BindingSetPreAttrs(m, _, _, _, _)) -> m) (FSComp.SR.parsErrorInReturnForLetIncorrectIndentation())
        let mWhole = unionRanges m (rhs parseState 3)
-       mkLetExpression(false, mIn, mWhole, arbExpr ("declExpr3", (rhs parseState 3)), Some bindingSet, None) }
+       mkLetExpression(mIn, mWhole, arbExpr ("declExpr3", (rhs parseState 3)), bindingSet) }
 
   | hardwhiteDoBinding %prec expr_let
      { let (BindingSetPreAttrs(_, _, _, _, m)), e = $1
@@ -4534,13 +4535,15 @@ declExpr:
        if isMutable then errorR(Error(FSComp.SR.parsInvalidDeclarationSyntax(), rhs parseState 2))
        
        let mKeyword = rhs parseState 1
+       let keyword = if $1 = "let" then SynLeadingKeyword.LetBang mKeyword else SynLeadingKeyword.UseBang mKeyword
        let mEquals = Some(rhs parseState 3)
+       let mIn = rhs parseState 5
        let m = unionRanges mKeyword $8.Range
        
        // $1 contains the actual keyword ("let" or "use")
        let isUse = ($1 = "use")
-       
-       mkLetExpression(true, None, m, $8, None, Some(pat, returnInfo, $4, $7, mKeyword, mEquals, isUse)) }
+
+       mkLetBangExpression(Some mIn, m, $8, (pat, returnInfo, $4, $7, keyword, mEquals, isUse)) }
 
   | OBINDER ceBindingCore EQUALS typedSequentialExprBlock hardwhiteDefnBindingsTerminator opt_OBLOCKSEP moreBinders typedSequentialExprBlock %prec expr_let
      { // Offside-sensitive version of let!/use! binding
@@ -4553,12 +4556,13 @@ declExpr:
        let report, mIn, _ = $5
        report (if $1 = "use" then "use!" else "let!") (rhs parseState 1)  // report unterminated error
        let mKeyword = rhs parseState 1
+       let keyword = if $1 = "let" then SynLeadingKeyword.LetBang mKeyword else SynLeadingKeyword.UseBang mKeyword
        let mEquals = Some(rhs parseState 3)
        let m = unionRanges mKeyword $8.Range
        
        let isUse = ($1 = "use")
        
-       mkLetExpression(true, None, m, $8, None, Some(pat, returnInfo, $4, $7, mKeyword, mEquals, isUse)) }
+       mkLetBangExpression(mIn, m, $8, (pat, returnInfo, $4, $7, keyword, mEquals, isUse)) }
 
   | OBINDER ceBindingCore EQUALS typedSequentialExprBlock hardwhiteDefnBindingsTerminator opt_OBLOCKSEP error %prec expr_let
      { // Error recovery for incomplete let!/use! bindings
@@ -4570,14 +4574,16 @@ declExpr:
        if isMutable then errorR(Error(FSComp.SR.parsInvalidDeclarationSyntax(), rhs parseState 2))
        
        let mKeyword = rhs parseState 1
+       let keyword = if $1 = "let" then SynLeadingKeyword.LetBang mKeyword else SynLeadingKeyword.UseBang mKeyword
        let mEquals = Some(rhs parseState 3)
        let mAll = unionRanges mKeyword (rhs parseState 7)
        let m = $4.Range.EndRange // zero-width range
+       let _, mIn, _ = $5
        
        let isUse = ($1 = "use")
        
        // Use ImplicitZero as the continuation expression for error recovery
-       mkLetExpression(true, None, mAll, SynExpr.ImplicitZero m, None, Some(pat, returnInfo, $4, [], mKeyword, mEquals, isUse)) }
+       mkLetBangExpression(mIn, mAll, SynExpr.ImplicitZero m, (pat, returnInfo, $4, [], keyword, mEquals, isUse)) }
 
   | DO_BANG typedSequentialExpr IN opt_OBLOCKSEP typedSequentialExprBlock %prec expr_let
      { let spBind = DebugPointAtBinding.NoneAtDo
diff --git a/tests/FSharp.Compiler.Service.Tests/Common.fs b/tests/FSharp.Compiler.Service.Tests/Common.fs
index e54541c0444..221ab93e9ea 100644
--- a/tests/FSharp.Compiler.Service.Tests/Common.fs
+++ b/tests/FSharp.Compiler.Service.Tests/Common.fs
@@ -240,7 +240,7 @@ let getSingleParenInnerExpr expr =
 
 let getLetDeclHeadPattern (moduleDecl: SynModuleDecl) =
     match moduleDecl with
-    | SynModuleDecl.Let(_, [SynBinding(headPat = pat)], _) -> pat
+    | SynModuleDecl.Let(bindings = [SynBinding(headPat = pat)]) -> pat
     | _ -> failwith "Unexpected tree"
 
 let parseSourceCodeAndGetModule (source: string) =
diff --git a/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.SurfaceArea.netstandard20.bsl b/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.SurfaceArea.netstandard20.bsl
index e2aaca46ac3..66b3c742491 100644
--- a/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.SurfaceArea.netstandard20.bsl
+++ b/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.SurfaceArea.netstandard20.bsl
@@ -7258,22 +7258,8 @@ FSharp.Compiler.Syntax.SynExpr+Lazy: FSharp.Compiler.Syntax.SynExpr expr
 FSharp.Compiler.Syntax.SynExpr+Lazy: FSharp.Compiler.Syntax.SynExpr get_expr()
 FSharp.Compiler.Syntax.SynExpr+Lazy: FSharp.Compiler.Text.Range get_range()
 FSharp.Compiler.Syntax.SynExpr+Lazy: FSharp.Compiler.Text.Range range
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean get_isBang()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean get_isFromSource()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean get_isRecursive()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean get_isUse()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean isBang
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean isFromSource
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean isRecursive
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Boolean isUse
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.Syntax.SynExpr body
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.Syntax.SynExpr get_body()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia get_trivia()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia trivia
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.Text.Range get_range()
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.Text.Range range
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding] bindings
-FSharp.Compiler.Syntax.SynExpr+LetOrUse: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding] get_bindings()
+FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.Syntax.SynLetOrUse Item
+FSharp.Compiler.Syntax.SynExpr+LetOrUse: FSharp.Compiler.Syntax.SynLetOrUse get_Item()
 FSharp.Compiler.Syntax.SynExpr+LibraryOnlyILAssembly: FSharp.Compiler.Text.Range get_range()
 FSharp.Compiler.Syntax.SynExpr+LibraryOnlyILAssembly: FSharp.Compiler.Text.Range range
 FSharp.Compiler.Syntax.SynExpr+LibraryOnlyILAssembly: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynExpr] args
@@ -7795,7 +7781,7 @@ FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewInterpolatedSt
 FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewJoinIn(FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range, FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLambda(Boolean, Boolean, FSharp.Compiler.Syntax.SynSimplePats, FSharp.Compiler.Syntax.SynExpr, Microsoft.FSharp.Core.FSharpOption`1[System.Tuple`2[Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynPat],FSharp.Compiler.Syntax.SynExpr]], FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynExprLambdaTrivia)
 FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLazy(FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range)
-FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLetOrUse(Boolean, Boolean, Boolean, Boolean, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding], FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia)
+FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLetOrUse(FSharp.Compiler.Syntax.SynLetOrUse)
 FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLibraryOnlyILAssembly(System.Object, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynType], Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynExpr], Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynType], FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLibraryOnlyStaticOptimization(Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynStaticOptimizationConstraint], FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynExpr: FSharp.Compiler.Syntax.SynExpr NewLibraryOnlyUnionCaseFieldGet(FSharp.Compiler.Syntax.SynExpr, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.Ident], Int32, FSharp.Compiler.Text.Range)
@@ -7992,6 +7978,24 @@ FSharp.Compiler.Syntax.SynInterpolatedStringPart: FSharp.Compiler.Syntax.SynInte
 FSharp.Compiler.Syntax.SynInterpolatedStringPart: Int32 Tag
 FSharp.Compiler.Syntax.SynInterpolatedStringPart: Int32 get_Tag()
 FSharp.Compiler.Syntax.SynInterpolatedStringPart: System.String ToString()
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean IsBang
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean IsFromSource
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean IsRecursive
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean IsUse
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean get_IsBang()
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean get_IsFromSource()
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean get_IsRecursive()
+FSharp.Compiler.Syntax.SynLetOrUse: Boolean get_IsUse()
+FSharp.Compiler.Syntax.SynLetOrUse: FSharp.Compiler.Syntax.SynExpr Body
+FSharp.Compiler.Syntax.SynLetOrUse: FSharp.Compiler.Syntax.SynExpr get_Body()
+FSharp.Compiler.Syntax.SynLetOrUse: FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia Trivia
+FSharp.Compiler.Syntax.SynLetOrUse: FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia get_Trivia()
+FSharp.Compiler.Syntax.SynLetOrUse: FSharp.Compiler.Text.Range Range
+FSharp.Compiler.Syntax.SynLetOrUse: FSharp.Compiler.Text.Range get_Range()
+FSharp.Compiler.Syntax.SynLetOrUse: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding] Bindings
+FSharp.Compiler.Syntax.SynLetOrUse: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding] get_Bindings()
+FSharp.Compiler.Syntax.SynLetOrUse: System.String ToString()
+FSharp.Compiler.Syntax.SynLetOrUse: Void .ctor(Boolean, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding], FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia)
 FSharp.Compiler.Syntax.SynLongIdent: Boolean ThereIsAnExtraDotAtTheEnd
 FSharp.Compiler.Syntax.SynLongIdent: Boolean get_ThereIsAnExtraDotAtTheEnd()
 FSharp.Compiler.Syntax.SynLongIdent: FSharp.Compiler.Syntax.SynLongIdent NewSynLongIdent(Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.Ident], Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Text.Range], Microsoft.FSharp.Collections.FSharpList`1[Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.SyntaxTrivia.IdentTrivia]])
@@ -8219,6 +8223,8 @@ FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: Boolean get_isRecursive()
 FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: Boolean get_isStatic()
 FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: Boolean isRecursive
 FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: Boolean isStatic
+FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia get_trivia()
+FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia trivia
 FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: FSharp.Compiler.Text.Range get_range()
 FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: FSharp.Compiler.Text.Range range
 FSharp.Compiler.Syntax.SynMemberDefn+LetBindings: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding] bindings
@@ -8284,7 +8290,7 @@ FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewIm
 FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewImplicitInherit(FSharp.Compiler.Syntax.SynType, FSharp.Compiler.Syntax.SynExpr, Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Syntax.Ident], FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynMemberDefnInheritTrivia)
 FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewInherit(Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Syntax.SynType], Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Syntax.Ident], FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynMemberDefnInheritTrivia)
 FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewInterface(FSharp.Compiler.Syntax.SynType, Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range], Microsoft.FSharp.Core.FSharpOption`1[Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynMemberDefn]], FSharp.Compiler.Text.Range)
-FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewLetBindings(Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding], Boolean, Boolean, FSharp.Compiler.Text.Range)
+FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewLetBindings(Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding], Boolean, Boolean, FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia)
 FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewMember(FSharp.Compiler.Syntax.SynBinding, FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewNestedType(FSharp.Compiler.Syntax.SynTypeDefn, Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Syntax.SynAccess], FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynMemberDefn: FSharp.Compiler.Syntax.SynMemberDefn NewOpen(FSharp.Compiler.Syntax.SynOpenDeclTarget, FSharp.Compiler.Text.Range)
@@ -8436,6 +8442,8 @@ FSharp.Compiler.Syntax.SynModuleDecl+HashDirective: FSharp.Compiler.Text.Range g
 FSharp.Compiler.Syntax.SynModuleDecl+HashDirective: FSharp.Compiler.Text.Range range
 FSharp.Compiler.Syntax.SynModuleDecl+Let: Boolean get_isRecursive()
 FSharp.Compiler.Syntax.SynModuleDecl+Let: Boolean isRecursive
+FSharp.Compiler.Syntax.SynModuleDecl+Let: FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia get_trivia()
+FSharp.Compiler.Syntax.SynModuleDecl+Let: FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia trivia
 FSharp.Compiler.Syntax.SynModuleDecl+Let: FSharp.Compiler.Text.Range get_range()
 FSharp.Compiler.Syntax.SynModuleDecl+Let: FSharp.Compiler.Text.Range range
 FSharp.Compiler.Syntax.SynModuleDecl+Let: Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding] bindings
@@ -8502,7 +8510,7 @@ FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewAt
 FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewException(FSharp.Compiler.Syntax.SynExceptionDefn, FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewExpr(FSharp.Compiler.Syntax.SynExpr, FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewHashDirective(FSharp.Compiler.Syntax.ParsedHashDirective, FSharp.Compiler.Text.Range)
-FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewLet(Boolean, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding], FSharp.Compiler.Text.Range)
+FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewLet(Boolean, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynBinding], FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia)
 FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewModuleAbbrev(FSharp.Compiler.Syntax.Ident, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.Ident], FSharp.Compiler.Text.Range)
 FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewNamespaceFragment(FSharp.Compiler.Syntax.SynModuleOrNamespace)
 FSharp.Compiler.Syntax.SynModuleDecl: FSharp.Compiler.Syntax.SynModuleDecl NewNestedModule(FSharp.Compiler.Syntax.SynComponentInfo, Boolean, Microsoft.FSharp.Collections.FSharpList`1[FSharp.Compiler.Syntax.SynModuleDecl], Boolean, FSharp.Compiler.Text.Range, FSharp.Compiler.SyntaxTrivia.SynModuleDeclNestedModuleTrivia)
@@ -10341,16 +10349,6 @@ FSharp.Compiler.SyntaxTrivia.SynExprLambdaTrivia: Microsoft.FSharp.Core.FSharpOp
 FSharp.Compiler.SyntaxTrivia.SynExprLambdaTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] get_ArrowRange()
 FSharp.Compiler.SyntaxTrivia.SynExprLambdaTrivia: System.String ToString()
 FSharp.Compiler.SyntaxTrivia.SynExprLambdaTrivia: Void .ctor(Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range])
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia Zero
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia get_Zero()
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: FSharp.Compiler.Text.Range LetOrUseKeyword
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: FSharp.Compiler.Text.Range get_LetOrUseKeyword()
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] EqualsRange
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] InKeyword
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] get_EqualsRange()
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] get_InKeyword()
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: System.String ToString()
-FSharp.Compiler.SyntaxTrivia.SynExprLetOrUseTrivia: Void .ctor(FSharp.Compiler.Text.Range, Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range], Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range])
 FSharp.Compiler.SyntaxTrivia.SynExprMatchBangTrivia: FSharp.Compiler.Text.Range MatchBangKeyword
 FSharp.Compiler.SyntaxTrivia.SynExprMatchBangTrivia: FSharp.Compiler.Text.Range WithKeyword
 FSharp.Compiler.SyntaxTrivia.SynExprMatchBangTrivia: FSharp.Compiler.Text.Range get_MatchBangKeyword()
@@ -10413,6 +10411,8 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+AbstractMember: FSharp.Compiler.T
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+AbstractMember: FSharp.Compiler.Text.Range memberRange
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+And: FSharp.Compiler.Text.Range andRange
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+And: FSharp.Compiler.Text.Range get_andRange()
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+AndBang: FSharp.Compiler.Text.Range andBangRange
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+AndBang: FSharp.Compiler.Text.Range get_andBangRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Default: FSharp.Compiler.Text.Range defaultRange
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Default: FSharp.Compiler.Text.Range get_defaultRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+DefaultVal: FSharp.Compiler.Text.Range defaultRange
@@ -10425,6 +10425,8 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Extern: FSharp.Compiler.Text.Rang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Extern: FSharp.Compiler.Text.Range get_externRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Let: FSharp.Compiler.Text.Range get_letRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Let: FSharp.Compiler.Text.Range letRange
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetBang: FSharp.Compiler.Text.Range get_letBangRange()
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetBang: FSharp.Compiler.Text.Range letBangRange
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetRec: FSharp.Compiler.Text.Range get_letRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetRec: FSharp.Compiler.Text.Range get_recRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetRec: FSharp.Compiler.Text.Range letRange
@@ -10486,11 +10488,13 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+StaticVal: FSharp.Compiler.Text.R
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Abstract
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 AbstractMember
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 And
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 AndBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Default
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 DefaultVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Do
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Extern
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Let
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 LetBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 LetRec
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Member
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 MemberVal
@@ -10508,10 +10512,13 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 StaticMemberVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 StaticVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Synthetic
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Use
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 UseBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 UseRec
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags: Int32 Val
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Use: FSharp.Compiler.Text.Range get_useRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Use: FSharp.Compiler.Text.Range useRange
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseBang: FSharp.Compiler.Text.Range get_useBangRange()
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseBang: FSharp.Compiler.Text.Range useBangRange
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseRec: FSharp.Compiler.Text.Range get_recRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseRec: FSharp.Compiler.Text.Range get_useRange()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseRec: FSharp.Compiler.Text.Range recRange
@@ -10521,11 +10528,13 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Val: FSharp.Compiler.Text.Range v
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsAbstract
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsAbstractMember
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsAnd
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsAndBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsDefault
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsDefaultVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsDo
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsExtern
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsLet
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsLetBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsLetRec
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsMember
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsMemberVal
@@ -10543,16 +10552,19 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsStaticMemberVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsStaticVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsSynthetic
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsUse
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsUseBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsUseRec
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean IsVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsAbstract()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsAbstractMember()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsAnd()
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsAndBang()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsDefault()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsDefaultVal()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsDo()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsExtern()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsLet()
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsLetBang()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsLetRec()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsMember()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsMemberVal()
@@ -10570,16 +10582,19 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsStaticMemberVal()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsStaticVal()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsSynthetic()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsUse()
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsUseBang()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsUseRec()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Boolean get_IsVal()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewAbstract(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewAbstractMember(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewAnd(FSharp.Compiler.Text.Range)
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewAndBang(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewDefault(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewDefaultVal(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewDo(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewExtern(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewLet(FSharp.Compiler.Text.Range)
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewLetBang(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewLetRec(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewMember(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewMemberVal(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
@@ -10596,6 +10611,7 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.Syn
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewStaticMemberVal(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewStaticVal(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewUse(FSharp.Compiler.Text.Range)
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewUseBang(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewUseRec(FSharp.Compiler.Text.Range, FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword NewVal(FSharp.Compiler.Text.Range)
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword Synthetic
@@ -10603,11 +10619,13 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.Syn
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Abstract
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+AbstractMember
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+And
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+AndBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Default
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+DefaultVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Do
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Extern
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Let
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+LetRec
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Member
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+MemberVal
@@ -10625,6 +10643,7 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.Syn
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+StaticVal
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Tags
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Use
+FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseBang
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+UseRec
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword+Val
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.Text.Range Range
@@ -10632,6 +10651,12 @@ FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: FSharp.Compiler.Text.Range get_R
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Int32 Tag
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: Int32 get_Tag()
 FSharp.Compiler.SyntaxTrivia.SynLeadingKeyword: System.String ToString()
+FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia: FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia Zero
+FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia: FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia get_Zero()
+FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] InKeyword
+FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] get_InKeyword()
+FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia: System.String ToString()
+FSharp.Compiler.SyntaxTrivia.SynLetOrUseTrivia: Void .ctor(Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range])
 FSharp.Compiler.SyntaxTrivia.SynMatchClauseTrivia: FSharp.Compiler.SyntaxTrivia.SynMatchClauseTrivia Zero
 FSharp.Compiler.SyntaxTrivia.SynMatchClauseTrivia: FSharp.Compiler.SyntaxTrivia.SynMatchClauseTrivia get_Zero()
 FSharp.Compiler.SyntaxTrivia.SynMatchClauseTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] ArrowRange
@@ -10670,6 +10695,12 @@ FSharp.Compiler.SyntaxTrivia.SynMemberDefnInheritTrivia: FSharp.Compiler.Text.Ra
 FSharp.Compiler.SyntaxTrivia.SynMemberDefnInheritTrivia: FSharp.Compiler.Text.Range get_InheritKeyword()
 FSharp.Compiler.SyntaxTrivia.SynMemberDefnInheritTrivia: System.String ToString()
 FSharp.Compiler.SyntaxTrivia.SynMemberDefnInheritTrivia: Void .ctor(FSharp.Compiler.Text.Range)
+FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia: FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia Zero
+FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia: FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia get_Zero()
+FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] InKeyword
+FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] get_InKeyword()
+FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia: System.String ToString()
+FSharp.Compiler.SyntaxTrivia.SynMemberDefnLetBindingsTrivia: Void .ctor(Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range])
 FSharp.Compiler.SyntaxTrivia.SynMemberGetSetTrivia: FSharp.Compiler.Text.Range WithKeyword
 FSharp.Compiler.SyntaxTrivia.SynMemberGetSetTrivia: FSharp.Compiler.Text.Range get_WithKeyword()
 FSharp.Compiler.SyntaxTrivia.SynMemberGetSetTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] AndKeyword
@@ -10688,6 +10719,12 @@ FSharp.Compiler.SyntaxTrivia.SynMemberSigMemberTrivia: Microsoft.FSharp.Core.FSh
 FSharp.Compiler.SyntaxTrivia.SynMemberSigMemberTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.SyntaxTrivia.GetSetKeywords] get_GetSetKeywords()
 FSharp.Compiler.SyntaxTrivia.SynMemberSigMemberTrivia: System.String ToString()
 FSharp.Compiler.SyntaxTrivia.SynMemberSigMemberTrivia: Void .ctor(Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.SyntaxTrivia.GetSetKeywords])
+FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia: FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia Zero
+FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia: FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia get_Zero()
+FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] InKeyword
+FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] get_InKeyword()
+FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia: System.String ToString()
+FSharp.Compiler.SyntaxTrivia.SynModuleDeclLetTrivia: Void .ctor(Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range])
 FSharp.Compiler.SyntaxTrivia.SynModuleDeclNestedModuleTrivia: FSharp.Compiler.SyntaxTrivia.SynModuleDeclNestedModuleTrivia Zero
 FSharp.Compiler.SyntaxTrivia.SynModuleDeclNestedModuleTrivia: FSharp.Compiler.SyntaxTrivia.SynModuleDeclNestedModuleTrivia get_Zero()
 FSharp.Compiler.SyntaxTrivia.SynModuleDeclNestedModuleTrivia: Microsoft.FSharp.Core.FSharpOption`1[FSharp.Compiler.Text.Range] EqualsRange
diff --git a/tests/FSharp.Compiler.Service.Tests/ParsedInputModuleTests.fs b/tests/FSharp.Compiler.Service.Tests/ParsedInputModuleTests.fs
index f8168ed68e6..2ff0eebe32b 100644
--- a/tests/FSharp.Compiler.Service.Tests/ParsedInputModuleTests.fs
+++ b/tests/FSharp.Compiler.Service.Tests/ParsedInputModuleTests.fs
@@ -75,8 +75,8 @@ let ``tryPick recursive let binding`` () =
         (pos0, parseTree)
         ||> ParsedInput.tryPick (fun _path node ->
             match node with
-            | SyntaxNode.SynExpr(SynExpr.LetOrUse(isRecursive = false)) -> failwith "isRecursive should be true"
-            | SyntaxNode.SynExpr(SynExpr.LetOrUse(isRecursive = true; bindings = bindings)) -> Some bindings
+            | SyntaxNode.SynExpr(SynExpr.LetOrUse({ IsRecursive = false })) -> failwith "isRecursive should be true"
+            | SyntaxNode.SynExpr(SynExpr.LetOrUse({ IsRecursive = true; Bindings = bindings })) -> Some bindings
             | _ -> None)
 
     match bindings with
diff --git a/tests/FSharp.Compiler.Service.Tests/ParserTests.fs b/tests/FSharp.Compiler.Service.Tests/ParserTests.fs
index bf36e2755ef..7e7339cdb5f 100644
--- a/tests/FSharp.Compiler.Service.Tests/ParserTests.fs
+++ b/tests/FSharp.Compiler.Service.Tests/ParserTests.fs
@@ -155,7 +155,7 @@ let f (x
 """
 
     match getSingleDeclInModule parseResults with
-    | SynModuleDecl.Let (_, [ SynBinding (headPat = headPat) ], _) ->
+    | SynModuleDecl.Let (bindings = [ SynBinding (headPat = headPat) ] ; range = _) ->
         match headPat with
         | SynPat.LongIdent (argPats=SynArgPats.Pats [ SynPat.FromParseError (SynPat.Paren (SynPat.Named _, _), _) ]) -> ()
         | _ -> failwith "Unexpected tree"
@@ -168,7 +168,7 @@ let f (x, y
 """
 
     match getSingleDeclInModule parseResults with
-    | SynModuleDecl.Let (_, [ SynBinding (headPat = headPat) ], _) ->
+    | SynModuleDecl.Let (bindings = [ SynBinding (headPat = headPat) ] ; range = _) ->
         match headPat with
         | SynPat.LongIdent (argPats=SynArgPats.Pats [ SynPat.FromParseError (SynPat.Paren (SynPat.Tuple _, _), _) ]) -> ()
         | _ -> failwith "Unexpected tree"
@@ -181,7 +181,7 @@ let f (x,
 """
 
     match getSingleDeclInModule parseResults with
-    | SynModuleDecl.Let (_, [ SynBinding (headPat = SynPat.LongIdent (argPats = SynArgPats.Pats [ pat ])) ], _) ->
+    | SynModuleDecl.Let (bindings = [ SynBinding (headPat = SynPat.LongIdent (argPats = SynArgPats.Pats [ pat ])) ] ; range = _) ->
         match pat with
         | SynPat.FromParseError (SynPat.Paren (SynPat.Tuple(elementPats = [SynPat.Named _; SynPat.Wild _]), _), _) -> ()
         | _ -> failwith "Unexpected tree"
@@ -216,7 +216,7 @@ let ``Expr - Tuple 07`` () =
 let x = 1,
 """
     match getSingleModuleMemberDecls parseResults with
-    | [ SynModuleDecl.Let(_, [ (SynBinding(expr = expr)) ], range) ] ->
+    | [ SynModuleDecl.Let(bindings = [ (SynBinding(expr = expr)) ] ; range = range) ] ->
         shouldEqual expr.Range.StartLine expr.Range.EndLine
         shouldEqual range.StartLine range.EndLine
     | _ -> failwith "Unexpected tree"
diff --git a/tests/FSharp.Compiler.Service.Tests/ServiceUntypedParseTests.fs b/tests/FSharp.Compiler.Service.Tests/ServiceUntypedParseTests.fs
index c6711965e72..9ee31b25b63 100644
--- a/tests/FSharp.Compiler.Service.Tests/ServiceUntypedParseTests.fs
+++ b/tests/FSharp.Compiler.Service.Tests/ServiceUntypedParseTests.fs
@@ -146,7 +146,7 @@ let foo8 = ()
     let (SynModuleOrNamespace (decls = decls)) = parseSourceCodeAndGetModule source
     decls |> List.map (fun decl ->
         match decl with
-        | SynModuleDecl.Let (_, [SynBinding (attributes = attributeLists)], _) ->
+        | SynModuleDecl.Let (bindings = [SynBinding (attributes = attributeLists)]) ->
             attributeLists |> List.map (fun list -> list.Attributes.Length, getRangeCoords list.Range)
         | _ -> failwith "Could not get binding")
     |> shouldEqual
diff --git a/tests/FSharp.Compiler.Service.Tests/Symbols.fs b/tests/FSharp.Compiler.Service.Tests/Symbols.fs
index 220bfc62fde..0fbd8ec84ac 100644
--- a/tests/FSharp.Compiler.Service.Tests/Symbols.fs
+++ b/tests/FSharp.Compiler.Service.Tests/Symbols.fs
@@ -67,7 +67,7 @@ extern int private c()
         |> List.zip decls
         |> List.iter (fun (actual, expected) ->
             match actual with
-            | SynModuleDecl.Let (_, [SynBinding (accessibility = access)], _) -> Option.map string access |> shouldEqual expected
+            | SynModuleDecl.Let (bindings = [SynBinding (accessibility = access)]) -> Option.map string access |> shouldEqual expected
             | decl -> failwithf "unexpected decl: %O" decl)
 
         [ "a", (true, false, false, false)
@@ -91,7 +91,7 @@ extern int AccessibleChildren()"""
 
         match parseResults with
         | ParsedInput.ImplFile (ParsedImplFileInput (contents = [ SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-            SynModuleDecl.Let(false, [ SynBinding(range = mb) ] , ml)
+            SynModuleDecl.Let(isRecursive = false ; bindings = [ SynBinding(range = mb) ] ; range = ml)
         ]) ])) ->
             assertRange (2, 0) (3, 31) ml
             assertRange (2, 0) (3, 31) mb
@@ -107,10 +107,10 @@ extern void setCallbridgeSupportTarget(IntPtr newTarget)
         match ast with
         | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
             SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-                SynModuleDecl.Let(false, [ SynBinding(returnInfo =
+                SynModuleDecl.Let(isRecursive = false ; bindings = [ SynBinding(returnInfo =
                     Some (SynBindingReturnInfo(typeName =
                         SynType.App(typeName =
-                            SynType.LongIdent(SynLongIdent([unitIdent], [], [Some (IdentTrivia.OriginalNotation "void")])))))) ] , _)
+                            SynType.LongIdent(SynLongIdent([unitIdent], [], [Some (IdentTrivia.OriginalNotation "void")])))))) ] )
                 ])
             ])) ->
             Assert.Equal("unit", unitIdent.idText)
@@ -127,14 +127,14 @@ extern int AccessibleChildren(int* x)
         match ast with
         | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
             SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-                SynModuleDecl.Let(false, [ SynBinding(headPat =
+                SynModuleDecl.Let(isRecursive = false ; bindings = [ SynBinding(headPat =
                     SynPat.LongIdent(argPats = SynArgPats.Pats [
                         SynPat.Tuple(elementPats = [
                             SynPat.Attrib(pat = SynPat.Typed(targetType = SynType.App(typeName = SynType.LongIdent(
                                 SynLongIdent([nativeptrIdent], [], [Some (IdentTrivia.OriginalNotation "*")])
                                 ))))
                         ])
-                    ])) ], _)
+                    ])) ])
                 ])
             ])) ->
             Assert.Equal("nativeptr", nativeptrIdent.idText)
@@ -151,14 +151,14 @@ extern int AccessibleChildren(obj& x)
         match ast with
         | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
             SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-                SynModuleDecl.Let(false, [ SynBinding(headPat =
+                SynModuleDecl.Let(isRecursive = false ; bindings = [ SynBinding(headPat =
                     SynPat.LongIdent(argPats = SynArgPats.Pats [
                         SynPat.Tuple(elementPats = [
                             SynPat.Attrib(pat = SynPat.Typed(targetType = SynType.App(typeName = SynType.LongIdent(
                                 SynLongIdent([byrefIdent], [], [Some (IdentTrivia.OriginalNotation "&")])
                                 ))))
                         ])
-                    ])) ], _)
+                    ])) ])
                 ])
             ])) ->
             Assert.Equal("byref", byrefIdent.idText)
@@ -175,14 +175,14 @@ extern int AccessibleChildren(void* x)
         match ast with
         | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
             SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-                SynModuleDecl.Let(false, [ SynBinding(headPat =
+                SynModuleDecl.Let(isRecursive = false ; bindings = [ SynBinding(headPat =
                     SynPat.LongIdent(argPats = SynArgPats.Pats [
                         SynPat.Tuple(elementPats = [
                             SynPat.Attrib(pat = SynPat.Typed(targetType = SynType.App(typeName = SynType.LongIdent(
                                 SynLongIdent([nativeintIdent], [], [Some (IdentTrivia.OriginalNotation "void*")])
                                 ))))
                         ])
-                    ])) ], _)
+                    ])) ])
                 ])
             ])) ->
             Assert.Equal("nativeint", nativeintIdent.idText)
diff --git a/tests/FSharp.Compiler.Service.Tests/XmlDocTests.fs b/tests/FSharp.Compiler.Service.Tests/XmlDocTests.fs
index 3e427293e25..2097997019d 100644
--- a/tests/FSharp.Compiler.Service.Tests/XmlDocTests.fs
+++ b/tests/FSharp.Compiler.Service.Tests/XmlDocTests.fs
@@ -93,7 +93,7 @@ let (|Members|MemberSigs|) = function
 let (|Decls|LetBindings|ValSig|LetOrUse|) = function
     | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
             SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-                SynModuleDecl.Let(bindings = [SynBinding(expr = SynExpr.LetOrUse(range = range; bindings = bindings))])])])) ->
+                SynModuleDecl.Let(bindings = [SynBinding(expr = SynExpr.LetOrUse({ Range = range; Bindings = bindings }))])])])) ->
         LetOrUse(range, bindings)
 
     | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
@@ -103,7 +103,7 @@ let (|Decls|LetBindings|ValSig|LetOrUse|) = function
 
     | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
             SynModuleOrNamespace.SynModuleOrNamespace(decls = [
-                SynModuleDecl.Expr(expr = SynExpr.LetOrUse(range = range; bindings = bindings))])])) ->
+                SynModuleDecl.Expr(expr = SynExpr.LetOrUse({ Range = range; Bindings = bindings }))])])) ->
         LetBindings(range, bindings)
 
     | ParsedInput.ImplFile(ParsedImplFileInput(contents = [
diff --git a/tests/service/data/SyntaxTree/Binding/ColonBeforeReturnTypeIsPartOfTrivia.fs.bsl b/tests/service/data/SyntaxTree/Binding/ColonBeforeReturnTypeIsPartOfTrivia.fs.bsl
index 654c3bed59d..065ab43c1c4 100644
--- a/tests/service/data/SyntaxTree/Binding/ColonBeforeReturnTypeIsPartOfTrivia.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/ColonBeforeReturnTypeIsPartOfTrivia.fs.bsl
@@ -32,8 +32,8 @@ ImplFile
                   (2,4--2,7), NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (2,14--2,15) })],
-              (2,0--2,31))], PreXmlDocEmpty, [], None, (2,0--3,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,31), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--3,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/ConditionalDirectiveAroundInlineKeyword.fs.bsl b/tests/service/data/SyntaxTree/Binding/ConditionalDirectiveAroundInlineKeyword.fs.bsl
index 495a509c7ca..aab2187eed5 100644
--- a/tests/service/data/SyntaxTree/Binding/ConditionalDirectiveAroundInlineKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/ConditionalDirectiveAroundInlineKeyword.fs.bsl
@@ -42,9 +42,9 @@ ImplFile
                         (6,15--6,39)), Ident ar, (6,15--6,42)), (6,4--6,12),
                   NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
                                InlineKeyword = Some (4,4--4,10)
-                               EqualsRange = Some (6,13--6,14) })], (2,0--6,42))],
-          PreXmlDocEmpty, [], None, (2,0--7,0), { LeadingKeyword = None })],
-      (true, true),
+                               EqualsRange = Some (6,13--6,14) })], (2,0--6,42),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--7,0),
+          { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives =
          [If (Not (Ident "FOO"), (3,0--3,8)); EndIf (5,0--5,6)]
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/Binding/InlineKeywordInBinding.fs.bsl b/tests/service/data/SyntaxTree/Binding/InlineKeywordInBinding.fs.bsl
index e194eb19fab..d167f6f6606 100644
--- a/tests/service/data/SyntaxTree/Binding/InlineKeywordInBinding.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/InlineKeywordInBinding.fs.bsl
@@ -22,36 +22,38 @@ ImplFile
                         Named (SynIdent (z, None), false, None, (2,15--2,16))],
                      None, (2,11--2,16)), None,
                   LetOrUse
-                    (false, false, true, false,
-                     [SynBinding
-                        (None, Normal, true, false, [],
-                         PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                         SynValData
-                           (None,
-                            SynValInfo
-                              ([[SynArgInfo ([], false, Some b)];
-                                [SynArgInfo ([], false, Some c)]],
-                               SynArgInfo ([], false, None)), None),
-                         LongIdent
-                           (SynLongIdent ([a], [], [None]), None, None,
-                            Pats
-                              [Named
-                                 (SynIdent (b, None), false, None, (3,17--3,18));
-                               Named
-                                 (SynIdent (c, None), false, None, (3,19--3,20))],
-                            None, (3,15--3,20)), None,
-                         Const (Unit, (3,23--3,25)), (3,15--3,20), NoneAtLet,
-                         { LeadingKeyword = Let (3,4--3,7)
-                           InlineKeyword = Some (3,8--3,14)
-                           EqualsRange = Some (3,21--3,22) })],
-                     Const (Unit, (4,4--4,6)), (3,4--4,6),
-                     { LetOrUseKeyword = (3,4--3,7)
-                       InKeyword = None
-                       EqualsRange = Some (3,21--3,22) }), (2,11--2,16),
-                  NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
-                               InlineKeyword = Some (2,4--2,10)
-                               EqualsRange = Some (2,17--2,18) })], (2,0--4,6))],
-          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    { IsRecursive = false
+                      Bindings =
+                       [SynBinding
+                          (None, Normal, true, false, [],
+                           PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                           SynValData
+                             (None,
+                              SynValInfo
+                                ([[SynArgInfo ([], false, Some b)];
+                                  [SynArgInfo ([], false, Some c)]],
+                                 SynArgInfo ([], false, None)), None),
+                           LongIdent
+                             (SynLongIdent ([a], [], [None]), None, None,
+                              Pats
+                                [Named
+                                   (SynIdent (b, None), false, None,
+                                    (3,17--3,18));
+                                 Named
+                                   (SynIdent (c, None), false, None,
+                                    (3,19--3,20))], None, (3,15--3,20)), None,
+                           Const (Unit, (3,23--3,25)), (3,15--3,20), NoneAtLet,
+                           { LeadingKeyword = Let (3,4--3,7)
+                             InlineKeyword = Some (3,8--3,14)
+                             EqualsRange = Some (3,21--3,22) })]
+                      Body = Const (Unit, (4,4--4,6))
+                      Range = (3,4--4,6)
+                      Trivia = { InKeyword = None } }, (2,11--2,16), NoneAtLet,
+                  { LeadingKeyword = Let (2,0--2,3)
+                    InlineKeyword = Some (2,4--2,10)
+                    EqualsRange = Some (2,17--2,18) })], (2,0--4,6),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--5,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfAttributeBetweenLetKeywordAndPatternShouldBeIncludedInSynModuleDeclLet.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfAttributeBetweenLetKeywordAndPatternShouldBeIncludedInSynModuleDeclLet.fs.bsl
index 90cbfb00a2a..13347c94622 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfAttributeBetweenLetKeywordAndPatternShouldBeIncludedInSynModuleDeclLet.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfAttributeBetweenLetKeywordAndPatternShouldBeIncludedInSynModuleDeclLet.fs.bsl
@@ -31,8 +31,9 @@ ImplFile
                   Const (Int32 1, (2,24--2,25)), (2,4--2,21), Yes (2,0--2,25),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,22--2,23) })], (2,0--2,25))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,22--2,23) })], (2,0--2,25),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynMemberDefnLetBindings.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynMemberDefnLetBindings.fs.bsl
index 791854800d3..cd43cce87f7 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynMemberDefnLetBindings.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynMemberDefnLetBindings.fs.bsl
@@ -36,11 +36,11 @@ ImplFile
                              { LeadingKeyword = Let (4,4--4,7)
                                InlineKeyword = None
                                EqualsRange = Some (4,10--4,11) })], false, false,
-                         (3,4--4,13))], (3,4--4,13)), [], None, (2,5--4,13),
-                  { LeadingKeyword = Type (2,0--2,4)
-                    EqualsRange = Some (2,9--2,10)
-                    WithKeyword = None })], (2,0--4,13))], PreXmlDocEmpty, [],
-          None, (2,0--5,0), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                         (3,4--4,13), { InKeyword = None })], (3,4--4,13)), [],
+                  None, (2,5--4,13), { LeadingKeyword = Type (2,0--2,4)
+                                       EqualsRange = Some (2,9--2,10)
+                                       WithKeyword = None })], (2,0--4,13))],
+          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynModuleDeclLet.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynModuleDeclLet.fs.bsl
index b15cdc324a7..8731bb1d5b5 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynModuleDeclLet.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfAttributeShouldBeIncludedInSynModuleDeclLet.fs.bsl
@@ -23,8 +23,9 @@ ImplFile
                   Const (Int32 0, (3,8--3,9)), (2,0--3,5), Yes (2,0--3,9),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (2,0--3,9))],
-          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,6--3,7) })], (2,0--3,9),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--4,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBinding.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBinding.fs.bsl
index 9ff03a69ae4..cf1d8d6e6f7 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBinding.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBinding.fs.bsl
@@ -7,24 +7,23 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (z, None), false, None, (3,8--3,9)),
-                        None, Const (Int32 2, (3,12--3,13)), (3,8--3,9),
-                        Yes (3,4--3,13), { LeadingKeyword = Let (3,4--3,7)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (3,10--3,11) })],
-                    Const (Unit, (4,4--4,6)), (3,4--4,6),
-                    { LetOrUseKeyword = (3,4--3,7)
-                      InKeyword = None
-                      EqualsRange = Some (3,10--3,11) }), (2,0--4,6)),
-              (2,0--4,6))], PreXmlDocEmpty, [], None, (2,0--5,0),
-          { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (z, None), false, None, (3,8--3,9)),
+                          None, Const (Int32 2, (3,12--3,13)), (3,8--3,9),
+                          Yes (3,4--3,13), { LeadingKeyword = Let (3,4--3,7)
+                                             InlineKeyword = None
+                                             EqualsRange = Some (3,10--3,11) })]
+                     Body = Const (Unit, (4,4--4,6))
+                     Range = (3,4--4,6)
+                     Trivia = { InKeyword = None } }, (2,0--4,6)), (2,0--4,6))],
+          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBindingTyped.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBindingTyped.fs.bsl
index 34d155903b7..5c6a98d6937 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBindingTyped.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInLocalLetBindingTyped.fs.bsl
@@ -10,32 +10,31 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (z, None), false, None, (3,8--3,9)),
-                        Some
-                          (SynBindingReturnInfo
-                             (LongIdent (SynLongIdent ([int], [], [None])),
-                              (3,11--3,14), [],
-                              { ColonRange = Some (3,9--3,10) })),
-                        Typed
-                          (Const (Int32 2, (3,17--3,18)),
-                           LongIdent (SynLongIdent ([int], [], [None])),
-                           (3,17--3,18)), (3,8--3,9), Yes (3,4--3,18),
-                        { LeadingKeyword = Let (3,4--3,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (3,15--3,16) })],
-                    Const (Unit, (4,4--4,6)), (3,4--4,6),
-                    { LetOrUseKeyword = (3,4--3,7)
-                      InKeyword = None
-                      EqualsRange = Some (3,15--3,16) }), (2,0--4,6)),
-              (2,0--4,6))], PreXmlDocEmpty, [], None, (2,0--5,0),
-          { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (z, None), false, None, (3,8--3,9)),
+                          Some
+                            (SynBindingReturnInfo
+                               (LongIdent (SynLongIdent ([int], [], [None])),
+                                (3,11--3,14), [],
+                                { ColonRange = Some (3,9--3,10) })),
+                          Typed
+                            (Const (Int32 2, (3,17--3,18)),
+                             LongIdent (SynLongIdent ([int], [], [None])),
+                             (3,17--3,18)), (3,8--3,9), Yes (3,4--3,18),
+                          { LeadingKeyword = Let (3,4--3,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (3,15--3,16) })]
+                     Body = Const (Unit, (4,4--4,6))
+                     Range = (3,4--4,6)
+                     Trivia = { InKeyword = None } }, (2,0--4,6)), (2,0--4,6))],
+          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBinding.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBinding.fs.bsl
index 8453e7e60c9..25a5aa97f25 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBinding.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBinding.fs.bsl
@@ -18,8 +18,9 @@ ImplFile
                   Const (Int32 12, (2,8--2,10)), (2,4--2,5), Yes (2,0--2,10),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--2,10))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--2,10),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBindingTyped.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBindingTyped.fs.bsl
index 77819f9484e..3fad6c6ce95 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBindingTyped.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfEqualSignShouldBePresentInSynModuleDeclLetBindingTyped.fs.bsl
@@ -25,8 +25,9 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,16),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,12--2,13) })], (2,0--2,16))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,12--2,13) })], (2,0--2,16),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynExprLetOrUseBinding.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynExprLetOrUseBinding.fs.bsl
index c2e98c6a098..a54754c7140 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynExprLetOrUseBinding.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynExprLetOrUseBinding.fs.bsl
@@ -16,32 +16,34 @@ ImplFile
                     (None, SynValInfo ([], SynArgInfo ([], false, None)), None),
                   Named (SynIdent (a, None), false, None, (2,4--2,5)), None,
                   LetOrUse
-                    (false, false, true, false,
-                     [SynBinding
-                        (None, Normal, false, false, [],
-                         PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                         SynValData
-                           (None,
-                            SynValInfo
-                              ([[SynArgInfo ([], false, Some c)]],
-                               SynArgInfo ([], false, None)), None),
-                         LongIdent
-                           (SynLongIdent ([b], [], [None]), None, None,
-                            Pats
-                              [Named
-                                 (SynIdent (c, None), false, None, (3,10--3,11))],
-                            None, (3,8--3,11)), None, Ident d, (3,8--3,11),
-                         NoneAtLet, { LeadingKeyword = Let (3,4--3,7)
-                                      InlineKeyword = None
-                                      EqualsRange = Some (3,12--3,13) })],
-                     Const (Unit, (4,4--4,6)), (3,4--4,6),
-                     { LetOrUseKeyword = (3,4--3,7)
-                       InKeyword = None
-                       EqualsRange = Some (3,12--3,13) }), (2,4--2,5), NoneAtLet,
+                    { IsRecursive = false
+                      Bindings =
+                       [SynBinding
+                          (None, Normal, false, false, [],
+                           PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                           SynValData
+                             (None,
+                              SynValInfo
+                                ([[SynArgInfo ([], false, Some c)]],
+                                 SynArgInfo ([], false, None)), None),
+                           LongIdent
+                             (SynLongIdent ([b], [], [None]), None, None,
+                              Pats
+                                [Named
+                                   (SynIdent (c, None), false, None,
+                                    (3,10--3,11))], None, (3,8--3,11)), None,
+                           Ident d, (3,8--3,11), NoneAtLet,
+                           { LeadingKeyword = Let (3,4--3,7)
+                             InlineKeyword = None
+                             EqualsRange = Some (3,12--3,13) })]
+                      Body = Const (Unit, (4,4--4,6))
+                      Range = (3,4--4,6)
+                      Trivia = { InKeyword = None } }, (2,4--2,5), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--4,6))],
-          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--4,6),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--5,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBinding.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBinding.fs.bsl
index c2d3ab9e526..444e70f8b63 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBinding.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBinding.fs.bsl
@@ -18,8 +18,9 @@ ImplFile
                   Const (Int32 12, (2,8--2,10)), (2,4--2,5), Yes (2,0--2,10),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--2,10))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--2,10),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBindingWithAttributes.fs.bsl b/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBindingWithAttributes.fs.bsl
index af82b819e97..6db963f547d 100644
--- a/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBindingWithAttributes.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/RangeOfLetKeywordShouldBePresentInSynModuleDeclLetBindingWithAttributes.fs.bsl
@@ -26,8 +26,9 @@ ImplFile
                   Const (Int32 12, (5,8--5,10)), (2,0--5,5), Yes (3,0--5,10),
                   { LeadingKeyword = Let (5,0--5,3)
                     InlineKeyword = None
-                    EqualsRange = Some (5,6--5,7) })], (2,0--5,10))],
-          PreXmlDocEmpty, [], None, (3,0--6,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [LineComment (4,0--4,15)] }, set []))
+                    EqualsRange = Some (5,6--5,7) })], (2,0--5,10),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (3,0--6,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [LineComment (4,0--4,15)] }, set []))
diff --git a/tests/service/data/SyntaxTree/Binding/TupleReturnTypeOfBindingShouldContainStars.fs.bsl b/tests/service/data/SyntaxTree/Binding/TupleReturnTypeOfBindingShouldContainStars.fs.bsl
index 0ac9a8d3c94..a3c7a7589fc 100644
--- a/tests/service/data/SyntaxTree/Binding/TupleReturnTypeOfBindingShouldContainStars.fs.bsl
+++ b/tests/service/data/SyntaxTree/Binding/TupleReturnTypeOfBindingShouldContainStars.fs.bsl
@@ -36,7 +36,8 @@ ImplFile
                         (2,8--2,20)), (2,23--2,38)), (2,4--2,5), Yes (2,0--2,38),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,21--2,22) })], (2,0--2,38));
+                    EqualsRange = Some (2,21--2,22) })], (2,0--2,38),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -75,8 +76,9 @@ ImplFile
                         (3,8--3,27)), (3,30--3,42)), (3,4--3,5), Yes (3,0--3,42),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,28--3,29) })], (3,0--3,42))],
-          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,28--3,29) })], (3,0--3,42),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--4,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/CodeComment/BlockCommentInSourceCode.fs.bsl b/tests/service/data/SyntaxTree/CodeComment/BlockCommentInSourceCode.fs.bsl
index 9dcd99749c5..e4901fa263f 100644
--- a/tests/service/data/SyntaxTree/CodeComment/BlockCommentInSourceCode.fs.bsl
+++ b/tests/service/data/SyntaxTree/CodeComment/BlockCommentInSourceCode.fs.bsl
@@ -31,8 +31,9 @@ ImplFile
                      Const (Int32 42, (2,23--2,25)), (2,19--2,25)), (2,4--2,16),
                   NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
                                InlineKeyword = None
-                               EqualsRange = Some (2,17--2,18) })], (2,0--2,25))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [BlockComment (2,6--2,13)] }, set []))
+                               EqualsRange = Some (2,17--2,18) })], (2,0--2,25),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [BlockComment (2,6--2,13)] }, set []))
diff --git a/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldBeCapturedIfUsedInAnInvalidLocation.fs.bsl b/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldBeCapturedIfUsedInAnInvalidLocation.fs.bsl
index 86c4c524b60..01db4a77f0d 100644
--- a/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldBeCapturedIfUsedInAnInvalidLocation.fs.bsl
+++ b/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldBeCapturedIfUsedInAnInvalidLocation.fs.bsl
@@ -34,9 +34,9 @@ ImplFile
                      { SeparatorRange = None }), (2,0--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (2,0--9,9))],
-          PreXmlDocEmpty, [], None, (3,0--10,0), { LeadingKeyword = None })],
-      (true, true),
+                    EqualsRange = Some (3,6--3,7) })], (2,0--9,9),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (3,0--10,0),
+          { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments =
diff --git a/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldNotBeCaptured.fs.bsl b/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldNotBeCaptured.fs.bsl
index e5f11934a8f..874620f3a24 100644
--- a/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldNotBeCaptured.fs.bsl
+++ b/tests/service/data/SyntaxTree/CodeComment/TripleSlashCommentShouldNotBeCaptured.fs.bsl
@@ -15,8 +15,9 @@ ImplFile
                   Const (Int32 0, (3,8--3,9)), (2,0--3,5), Yes (3,0--3,9),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (2,0--3,9))],
-          PreXmlDocEmpty, [], None, (3,0--4,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,6--3,7) })], (2,0--3,9),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (3,0--4,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/ComputationExpression/MultipleSynExprAndBangHaveRangeThatStartsAtAndAndEndsAfterExpression.fs.bsl b/tests/service/data/SyntaxTree/ComputationExpression/MultipleSynExprAndBangHaveRangeThatStartsAtAndAndEndsAfterExpression.fs.bsl
index 6aebfc848e9..75b64f6e983 100644
--- a/tests/service/data/SyntaxTree/ComputationExpression/MultipleSynExprAndBangHaveRangeThatStartsAtAndAndEndsAfterExpression.fs.bsl
+++ b/tests/service/data/SyntaxTree/ComputationExpression/MultipleSynExprAndBangHaveRangeThatStartsAtAndAndEndsAfterExpression.fs.bsl
@@ -13,62 +13,63 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (bar, None), false, None, (3,9--3,12)),
-                           None,
-                           App
-                             (NonAtomic, false, Ident getBar,
-                              Const (Unit, (3,22--3,24)), (3,15--3,24)),
-                           (3,4--3,24), Yes (3,4--3,24),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,13--3,14) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (foo, None), false, None, (4,9--4,12)),
-                           None,
-                           App
-                             (NonAtomic, false, Ident getFoo,
-                              Const (Unit, (4,22--4,24)), (4,15--4,24)),
-                           (4,4--4,24), Yes (4,4--4,24),
-                           { LeadingKeyword = And (4,4--4,8)
-                             InlineKeyword = Some (4,25--4,27)
-                             EqualsRange = Some (4,13--4,14) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (meh, None), false, None, (5,9--5,12)),
-                           None,
-                           App
-                             (NonAtomic, false, Ident getMeh,
-                              Const (Unit, (5,22--5,24)), (5,15--5,24)),
-                           (5,4--5,24), Yes (5,4--5,24),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,13--5,14) })],
-                       YieldOrReturn
-                         ((false, true), Ident bar, (6,4--6,14),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (3,4--6,14),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,13--3,14) }), (2,6--7,1)),
-                 (2,0--7,1)), (2,0--7,1))], PreXmlDocEmpty, [], None, (2,0--7,1),
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (bar, None), false, None, (3,9--3,12)),
+                             None,
+                             App
+                               (NonAtomic, false, Ident getBar,
+                                Const (Unit, (3,22--3,24)), (3,15--3,24)),
+                             (3,4--3,24), Yes (3,4--3,24),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,13--3,14) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (foo, None), false, None, (4,9--4,12)),
+                             None,
+                             App
+                               (NonAtomic, false, Ident getFoo,
+                                Const (Unit, (4,22--4,24)), (4,15--4,24)),
+                             (4,4--4,24), Yes (4,4--4,24),
+                             { LeadingKeyword = AndBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,13--4,14) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (meh, None), false, None, (5,9--5,12)),
+                             None,
+                             App
+                               (NonAtomic, false, Ident getMeh,
+                                Const (Unit, (5,22--5,24)), (5,15--5,24)),
+                             (5,4--5,24), Yes (5,4--5,24),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,13--5,14) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident bar, (6,4--6,14),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (3,4--6,14)
+                        Trivia = { InKeyword = None } }, (2,6--7,1)), (2,0--7,1)),
+              (2,0--7,1))], PreXmlDocEmpty, [], None, (2,0--7,1),
           { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/ComputationExpression/SynExprAndBangRangeStartsAtAndAndEndsAfterExpression.fs.bsl b/tests/service/data/SyntaxTree/ComputationExpression/SynExprAndBangRangeStartsAtAndAndEndsAfterExpression.fs.bsl
index 188f6cb28c4..54a38b7a63c 100644
--- a/tests/service/data/SyntaxTree/ComputationExpression/SynExprAndBangRangeStartsAtAndAndEndsAfterExpression.fs.bsl
+++ b/tests/service/data/SyntaxTree/ComputationExpression/SynExprAndBangRangeStartsAtAndAndEndsAfterExpression.fs.bsl
@@ -13,46 +13,47 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (bar, None), false, None, (3,9--3,12)),
-                           None,
-                           App
-                             (NonAtomic, false, Ident getBar,
-                              Const (Unit, (3,22--3,24)), (3,15--3,24)),
-                           (3,4--3,24), Yes (3,4--3,24),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,13--3,14) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (foo, None), false, None, (5,9--5,12)),
-                           None,
-                           App
-                             (NonAtomic, false, Ident getFoo,
-                              Const (Unit, (5,22--5,24)), (5,15--5,24)),
-                           (5,4--5,24), Yes (5,4--5,24),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,13--5,14) })],
-                       YieldOrReturn
-                         ((false, true), Ident bar, (7,4--7,14),
-                          { YieldOrReturnKeyword = (7,4--7,10) }), (3,4--7,14),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,13--3,14) }), (2,6--8,1)),
-                 (2,0--8,1)), (2,0--8,1))], PreXmlDocEmpty, [], None, (2,0--8,1),
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (bar, None), false, None, (3,9--3,12)),
+                             None,
+                             App
+                               (NonAtomic, false, Ident getBar,
+                                Const (Unit, (3,22--3,24)), (3,15--3,24)),
+                             (3,4--3,24), Yes (3,4--3,24),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,13--3,14) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (foo, None), false, None, (5,9--5,12)),
+                             None,
+                             App
+                               (NonAtomic, false, Ident getFoo,
+                                Const (Unit, (5,22--5,24)), (5,15--5,24)),
+                             (5,4--5,24), Yes (5,4--5,24),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,13--5,14) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident bar, (7,4--7,14),
+                            { YieldOrReturnKeyword = (7,4--7,10) })
+                        Range = (3,4--7,14)
+                        Trivia = { InKeyword = None } }, (2,6--8,1)), (2,0--8,1)),
+              (2,0--8,1))], PreXmlDocEmpty, [], None, (2,0--8,1),
           { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineCommentAreNotReportedAsTrivia.fs.bsl b/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineCommentAreNotReportedAsTrivia.fs.bsl
index 8ed093aa434..3fb68701b0d 100644
--- a/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineCommentAreNotReportedAsTrivia.fs.bsl
+++ b/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineCommentAreNotReportedAsTrivia.fs.bsl
@@ -17,8 +17,9 @@ ImplFile
                   Const (Int32 42, (8,4--8,6)), (2,4--2,5), Yes (2,0--8,6),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--8,6))],
-          PreXmlDocEmpty, [], None, (2,0--9,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [BlockComment (3,0--7,2)] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--8,6),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--9,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [BlockComment (3,0--7,2)] }, set []))
diff --git a/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineStringAreNotReportedAsTrivia.fs.bsl b/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineStringAreNotReportedAsTrivia.fs.bsl
index 2c1508983b8..bf1517651e9 100644
--- a/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineStringAreNotReportedAsTrivia.fs.bsl
+++ b/tests/service/data/SyntaxTree/ConditionalDirective/DirectivesInMultilineStringAreNotReportedAsTrivia.fs.bsl
@@ -24,8 +24,9 @@ ImplFile
                      (2,8--7,3)), (2,4--2,5), Yes (2,0--7,3),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--7,3))],
-          PreXmlDocEmpty, [], None, (2,0--8,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--7,3),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--8,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfElseEndif.fs.bsl b/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfElseEndif.fs.bsl
index 3a6cd1220fd..0f6e8574919 100644
--- a/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfElseEndif.fs.bsl
+++ b/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfElseEndif.fs.bsl
@@ -15,9 +15,9 @@ ImplFile
                   Const (Int32 3, (10,8--10,9)), (2,4--2,5), Yes (2,0--10,9),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--10,9))],
-          PreXmlDocEmpty, [], None, (2,0--12,0), { LeadingKeyword = None })],
-      (true, true),
+                    EqualsRange = Some (2,6--2,7) })], (2,0--10,9),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--12,0),
+          { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives =
          [If (Ident "FOO", (3,4--3,11)); If (Ident "MEH", (4,8--4,15));
           Else (6,8--6,13); EndIf (8,8--8,14); Else (9,4--9,9);
diff --git a/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfEndifWithComplexExpressions.fs.bsl b/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfEndifWithComplexExpressions.fs.bsl
index 2a2ab666df7..95b3b1193c2 100644
--- a/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfEndifWithComplexExpressions.fs.bsl
+++ b/tests/service/data/SyntaxTree/ConditionalDirective/NestedIfEndifWithComplexExpressions.fs.bsl
@@ -15,9 +15,9 @@ ImplFile
                   Const (Unit, (11,4--11,6)), (2,4--2,5), Yes (2,0--11,6),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--11,6))],
-          PreXmlDocEmpty, [], None, (2,0--12,0), { LeadingKeyword = None })],
-      (true, true),
+                    EqualsRange = Some (2,6--2,7) })], (2,0--11,6),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--12,0),
+          { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives =
          [If (Not (Ident "DEBUG"), (3,4--3,14));
           If (And (Ident "FOO", Ident "BAR"), (4,8--4,22));
diff --git a/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfElseEndif.fs.bsl b/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfElseEndif.fs.bsl
index 6a070b4b63c..309e45cb72d 100644
--- a/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfElseEndif.fs.bsl
+++ b/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfElseEndif.fs.bsl
@@ -15,9 +15,9 @@ ImplFile
                   Const (Int32 42, (6,4--6,6)), (2,4--2,5), Yes (2,0--6,6),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--6,6))],
-          PreXmlDocEmpty, [], None, (2,0--8,0), { LeadingKeyword = None })],
-      (true, true),
+                    EqualsRange = Some (2,6--2,7) })], (2,0--6,6),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--8,0),
+          { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives =
          [If (Ident "DEBUG", (3,4--3,13)); Else (5,4--5,9); EndIf (7,4--7,10)]
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfEndif.fs.bsl b/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfEndif.fs.bsl
index 45ef82ca4c5..0d60a023eaf 100644
--- a/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfEndif.fs.bsl
+++ b/tests/service/data/SyntaxTree/ConditionalDirective/SingleIfEndif.fs.bsl
@@ -15,9 +15,9 @@ ImplFile
                   Const (Int32 42, (6,4--6,6)), (2,4--2,5), Yes (2,0--6,6),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--6,6))],
-          PreXmlDocEmpty, [], None, (2,0--7,0), { LeadingKeyword = None })],
-      (true, true),
+                    EqualsRange = Some (2,6--2,7) })], (2,0--6,6),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--7,0),
+          { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives =
          [If (Ident "DEBUG", (3,4--3,13)); EndIf (5,4--5,10)]
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/AnonymousRecords-06.fs.bsl b/tests/service/data/SyntaxTree/Expression/AnonymousRecords-06.fs.bsl
index 9994586b626..b58b5e4c944 100644
--- a/tests/service/data/SyntaxTree/Expression/AnonymousRecords-06.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/AnonymousRecords-06.fs.bsl
@@ -28,10 +28,11 @@ ImplFile
                      { OpeningBraceRange = (1,10--1,12) }), (1,4--1,7),
                   NoneAtLet, { LeadingKeyword = Let (1,0--1,3)
                                InlineKeyword = None
-                               EqualsRange = Some (1,8--1,9) })], (1,0--1,39))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                               EqualsRange = Some (1,8--1,9) })], (1,0--1,39),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'AnonymousRecords-06' based on the file name 'AnonymousRecords-06.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/Expression/AnonymousRecords-11.fs.bsl b/tests/service/data/SyntaxTree/Expression/AnonymousRecords-11.fs.bsl
index 180ed425c9e..e33ad8c1418 100644
--- a/tests/service/data/SyntaxTree/Expression/AnonymousRecords-11.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/AnonymousRecords-11.fs.bsl
@@ -32,7 +32,7 @@ ImplFile
                   (3,4--3,9), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,10--3,11) })],
-              (3,0--3,28));
+              (3,0--3,28), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -61,7 +61,7 @@ ImplFile
                   (5,4--5,9), NoneAtLet, { LeadingKeyword = Let (5,0--5,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (5,10--5,11) })],
-              (5,0--5,29));
+              (5,0--5,29), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -90,7 +90,7 @@ ImplFile
                   (7,4--7,9), NoneAtLet, { LeadingKeyword = Let (7,0--7,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (7,10--7,11) })],
-              (7,0--7,29));
+              (7,0--7,29), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -119,7 +119,7 @@ ImplFile
                   (9,4--9,9), NoneAtLet, { LeadingKeyword = Let (9,0--9,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (9,10--9,11) })],
-              (9,0--9,30))],
+              (9,0--9,30), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--9,30), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Binary - Plus 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/Binary - Plus 05.fs.bsl
index 39964c93e47..6deea904868 100644
--- a/tests/service/data/SyntaxTree/Expression/Binary - Plus 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Binary - Plus 05.fs.bsl	
@@ -25,8 +25,8 @@ ImplFile
                      (4,4--4,7)), (3,4--3,5), Yes (3,0--4,7),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,7));
-           Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,7),
+              { InKeyword = None }); Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Do 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/Do 03.fs.bsl
index 846451482b1..c943c1197a6 100644
--- a/tests/service/data/SyntaxTree/Expression/Do 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Do 03.fs.bsl	
@@ -16,7 +16,8 @@ ImplFile
                      (4,4--4,6)), (3,4--3,5), Yes (3,0--4,6),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,6));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,6),
+              { InKeyword = None });
            Expr (Const (Int32 1, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Do 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/Do 04.fs.bsl
index 8e8a69fb49d..9bdda456a31 100644
--- a/tests/service/data/SyntaxTree/Expression/Do 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Do 04.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Yes (3,0--5,9), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,9)); Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,9), { InKeyword = None });
+           Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Do 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/Do 05.fs.bsl
index 7fa6c873dd7..8ecc1d6766a 100644
--- a/tests/service/data/SyntaxTree/Expression/Do 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Do 05.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Yes (3,0--5,5), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,5)); Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,5), { InKeyword = None });
+           Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda - _ Recovery - Casts.fsx.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda - _ Recovery - Casts.fsx.bsl
index 40768a3059a..721b79a0308 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda - _ Recovery - Casts.fsx.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda - _ Recovery - Casts.fsx.bsl	
@@ -21,7 +21,7 @@ ImplFile
                   (1,4--1,5), Yes (1,0--1,26), { LeadingKeyword = Let (1,0--1,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (1,6--1,7) })],
-              (1,0--1,26));
+              (1,0--1,26), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -40,7 +40,7 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,24), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,24));
+              (2,0--2,24), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -57,11 +57,12 @@ ImplFile
                      (3,8--3,19)), (3,4--3,5), Yes (3,0--3,19),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--3,19))],
-          PreXmlDocEmpty, [], None, (1,0--4,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,6--3,7) })], (3,0--3,19),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--4,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,19)-(1,20) parse error Unexpected symbol ')' in expression. Expected '.' or other token.
 (2,12)-(2,14) parse error Unexpected symbol ':>' in expression. Expected '.' or other token.
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_ArgumentExpressionInInnerAppExpression.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_ArgumentExpressionInInnerAppExpression.fs.bsl
index ea4488dc2eb..484f93d3e55 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_ArgumentExpressionInInnerAppExpression.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_ArgumentExpressionInInnerAppExpression.fs.bsl
@@ -25,8 +25,8 @@ ImplFile
                   Yes (1,0--1,17), { LeadingKeyword = Let (1,0--1,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (1,6--1,7) })],
-              (1,0--1,17))], PreXmlDocEmpty, [], None, (1,0--1,17),
-          { LeadingKeyword = None })], (true, true),
+              (1,0--1,17), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (1,0--1,17), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_FunctionWithUnderscoreDotLambda.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_FunctionWithUnderscoreDotLambda.fs.bsl
index 38bb6337e0a..3a1e1928f81 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_FunctionWithUnderscoreDotLambda.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_FunctionWithUnderscoreDotLambda.fs.bsl
@@ -19,8 +19,9 @@ ImplFile
                        DotRange = (1,14--1,15) }), (1,4--1,10), Yes (1,0--1,25),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,11--1,12) })], (1,0--1,25))],
-          PreXmlDocEmpty, [], None, (1,0--1,25), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,11--1,12) })], (1,0--1,25),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,25),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_NestedPropertiesAfterUnderscore.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_NestedPropertiesAfterUnderscore.fs.bsl
index 2211e80a157..cf17184d99b 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_NestedPropertiesAfterUnderscore.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_NestedPropertiesAfterUnderscore.fs.bsl
@@ -23,8 +23,9 @@ ImplFile
                        DotRange = (1,14--1,15) }), (1,4--1,10), Yes (1,0--1,41),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,11--1,12) })], (1,0--1,41))],
-          PreXmlDocEmpty, [], None, (1,0--1,41), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,11--1,12) })], (1,0--1,41),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,41),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_NotAllowedFunctionExpressionWithArg.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_NotAllowedFunctionExpressionWithArg.fs.bsl
index a8b3627712a..7342ff9c17b 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_NotAllowedFunctionExpressionWithArg.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_NotAllowedFunctionExpressionWithArg.fs.bsl
@@ -21,8 +21,8 @@ ImplFile
                   Yes (1,0--1,15), { LeadingKeyword = Let (1,0--1,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (1,6--1,7) })],
-              (1,0--1,15))], PreXmlDocEmpty, [], None, (1,0--1,15),
-          { LeadingKeyword = None })], (true, true),
+              (1,0--1,15), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (1,0--1,15), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_TopLevelLet.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_TopLevelLet.fs.bsl
index 981cafe11c6..1d03ff391dd 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_TopLevelLet.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_TopLevelLet.fs.bsl
@@ -31,8 +31,8 @@ ImplFile
                   (1,4--1,5), NoneAtLet, { LeadingKeyword = Let (1,0--1,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (1,6--1,7) })],
-              (1,0--1,25))], PreXmlDocEmpty, [], None, (1,0--1,25),
-          { LeadingKeyword = None })], (true, true),
+              (1,0--1,25), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (1,0--1,25), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_UnderscoreToFunctionCallWithSpaceAndUnitApplication.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_UnderscoreToFunctionCallWithSpaceAndUnitApplication.fs.bsl
index f469e8302b0..3f927350d76 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_UnderscoreToFunctionCallWithSpaceAndUnitApplication.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_UnderscoreToFunctionCallWithSpaceAndUnitApplication.fs.bsl
@@ -25,8 +25,9 @@ ImplFile
                      (1,13--1,30)), (1,4--1,10), Yes (1,0--1,30),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,11--1,12) })], (1,0--1,30))],
-          PreXmlDocEmpty, [], None, (1,0--1,30), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,11--1,12) })], (1,0--1,30),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,30),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/DotLambda_WithNonTupledFunctionCall.fs.bsl b/tests/service/data/SyntaxTree/Expression/DotLambda_WithNonTupledFunctionCall.fs.bsl
index 7786431ba6a..0ecfe3680c3 100644
--- a/tests/service/data/SyntaxTree/Expression/DotLambda_WithNonTupledFunctionCall.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/DotLambda_WithNonTupledFunctionCall.fs.bsl
@@ -27,8 +27,9 @@ ImplFile
                      (1,13--1,37)), (1,4--1,10), Yes (1,0--1,37),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,11--1,12) })], (1,0--1,37))],
-          PreXmlDocEmpty, [], None, (1,0--1,37), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,11--1,12) })], (1,0--1,37),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,37),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/For 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/For 03.fs.bsl
index f0fcaf35d0a..1dcae506443 100644
--- a/tests/service/data/SyntaxTree/Expression/For 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/For 03.fs.bsl	
@@ -18,7 +18,8 @@ ImplFile
                      (4,4--4,17)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,17));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,17),
+              { InKeyword = None });
            Expr (Const (Int32 3, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/For 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/For 04.fs.bsl
index 2f2bdc1381a..3e393411636 100644
--- a/tests/service/data/SyntaxTree/Expression/For 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/For 04.fs.bsl	
@@ -17,7 +17,8 @@ ImplFile
                      Const (Int32 2, (5,8--5,9)), (4,4--5,9)), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--5,9));
+                               EqualsRange = Some (3,6--3,7) })], (3,0--5,9),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/For 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/For 05.fs.bsl
index 034c9fb57de..842942d9aea 100644
--- a/tests/service/data/SyntaxTree/Expression/For 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/For 05.fs.bsl	
@@ -17,7 +17,8 @@ ImplFile
                      Const (Int32 2, (5,4--5,5)), (4,4--5,5)), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--5,5));
+                               EqualsRange = Some (3,6--3,7) })], (3,0--5,5),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/If 08.fs.bsl b/tests/service/data/SyntaxTree/Expression/If 08.fs.bsl
index 9f0b60b3108..d743cd50666 100644
--- a/tests/service/data/SyntaxTree/Expression/If 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/If 08.fs.bsl	
@@ -21,8 +21,8 @@ ImplFile
                                     IfToThenRange = (4,4--4,14) }), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--4,25));
-           Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
+                               EqualsRange = Some (3,6--3,7) })], (3,0--4,25),
+              { InKeyword = None }); Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/If 09.fs.bsl b/tests/service/data/SyntaxTree/Expression/If 09.fs.bsl
index 8756a96f138..092f9e1e4b3 100644
--- a/tests/service/data/SyntaxTree/Expression/If 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/If 09.fs.bsl	
@@ -21,8 +21,8 @@ ImplFile
                                    IfToThenRange = (4,4--4,14) }), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--5,6));
-           Expr (Const (Unit, (7,0--7,2)), (7,0--7,2))],
+                               EqualsRange = Some (3,6--3,7) })], (3,0--5,6),
+              { InKeyword = None }); Expr (Const (Unit, (7,0--7,2)), (7,0--7,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/If 10.fs.bsl b/tests/service/data/SyntaxTree/Expression/If 10.fs.bsl
index 096cafbaaff..edf40c04710 100644
--- a/tests/service/data/SyntaxTree/Expression/If 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/If 10.fs.bsl	
@@ -24,8 +24,8 @@ ImplFile
                        IfToThenRange = (4,4--4,14) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,22));
-           Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,22),
+              { InKeyword = None }); Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Lazy 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/Lazy 01.fs.bsl
index 38abbd179a4..500ce09ceab 100644
--- a/tests/service/data/SyntaxTree/Expression/Lazy 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Lazy 01.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Yes (3,0--5,9), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,9)); Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,9), { InKeyword = None });
+           Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Lazy 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/Lazy 02.fs.bsl
index c1441f5807d..91c34b109aa 100644
--- a/tests/service/data/SyntaxTree/Expression/Lazy 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Lazy 02.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Yes (3,0--5,5), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,5)); Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,5), { InKeyword = None });
+           Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Lazy 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/Lazy 03.fs.bsl
index 6b04c031cd7..50283d947be 100644
--- a/tests/service/data/SyntaxTree/Expression/Lazy 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Lazy 03.fs.bsl	
@@ -16,7 +16,8 @@ ImplFile
                      (4,4--4,8)), (3,4--3,5), Yes (3,0--4,8),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,8));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,8),
+              { InKeyword = None });
            Expr (Const (Int32 1, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Let 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/Let 01.fs.bsl
index 634f5cbd322..40accd084eb 100644
--- a/tests/service/data/SyntaxTree/Expression/Let 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Let 01.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   Yes (3,0--4,6), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--4,6)); Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
+              (3,0--4,6), { InKeyword = None });
+           Expr (Const (Unit, (6,0--6,2)), (6,0--6,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Let 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/Let 02.fs.bsl
index e033e0ed9f1..79a7938b21c 100644
--- a/tests/service/data/SyntaxTree/Expression/Let 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Let 02.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Yes (3,4--3,7), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--3,7)); Expr (Const (Unit, (5,0--5,2)), (5,0--5,2))],
+              (3,0--3,7), { InKeyword = None });
+           Expr (Const (Unit, (5,0--5,2)), (5,0--5,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/NestedSynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl b/tests/service/data/SyntaxTree/Expression/NestedSynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl
index 5ff48d7afcc..c52a9eaa722 100644
--- a/tests/service/data/SyntaxTree/Expression/NestedSynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/NestedSynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl
@@ -17,53 +17,59 @@ ImplFile
                      Pats [Paren (Const (Unit, (2,6--2,8)), (2,6--2,8))], None,
                      (2,4--2,8)), None,
                   LetOrUse
-                    (false, false, true, false,
-                     [SynBinding
-                        (None, Normal, false, false, [],
-                         PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                         SynValData
-                           (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                            None),
-                         Named (SynIdent (x, None), false, None, (3,8--3,9)),
-                         None, Const (Int32 1, (3,12--3,13)), (3,8--3,9),
-                         Yes (3,4--3,13), { LeadingKeyword = Let (3,4--3,7)
-                                            InlineKeyword = None
-                                            EqualsRange = Some (3,10--3,11) })],
-                     LetOrUse
-                       (false, false, true, false,
-                        [SynBinding
-                           (None, Normal, false, false, [],
-                            PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                            SynValData
-                              (None,
-                               SynValInfo ([], SynArgInfo ([], false, None)),
-                               None),
-                            Named (SynIdent (y, None), false, None, (4,8--4,9)),
-                            None, Const (Int32 2, (4,12--4,13)), (4,8--4,9),
-                            Yes (4,4--4,13), { LeadingKeyword = Let (4,4--4,7)
-                                               InlineKeyword = None
-                                               EqualsRange = Some (4,10--4,11) })],
-                        App
-                          (NonAtomic, false,
-                           App
-                             (NonAtomic, true,
-                              LongIdent
-                                (false,
-                                 SynLongIdent
-                                   ([op_Addition], [],
-                                    [Some (OriginalNotation "+")]), None,
-                                 (5,6--5,7)), Ident x, (5,4--5,7)), Ident y,
-                           (5,4--5,9)), (4,4--5,9),
-                        { LetOrUseKeyword = (4,4--4,7)
-                          InKeyword = Some (4,14--4,16)
-                          EqualsRange = Some (4,10--4,11) }), (3,4--5,9),
-                     { LetOrUseKeyword = (3,4--3,7)
-                       InKeyword = Some (3,14--3,16)
-                       EqualsRange = Some (3,10--3,11) }), (2,4--2,8), NoneAtLet,
-                  { LeadingKeyword = Let (2,0--2,3)
-                    InlineKeyword = None
-                    EqualsRange = Some (2,9--2,10) })], (2,0--5,9))],
-          PreXmlDocEmpty, [], None, (2,0--6,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [LineComment (3,17--3,55)] }, set []))
+                    { IsRecursive = false
+                      Bindings =
+                       [SynBinding
+                          (None, Normal, false, false, [],
+                           PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                           SynValData
+                             (None,
+                              SynValInfo ([], SynArgInfo ([], false, None)),
+                              None),
+                           Named (SynIdent (x, None), false, None, (3,8--3,9)),
+                           None, Const (Int32 1, (3,12--3,13)), (3,8--3,9),
+                           Yes (3,4--3,13), { LeadingKeyword = Let (3,4--3,7)
+                                              InlineKeyword = None
+                                              EqualsRange = Some (3,10--3,11) })]
+                      Body =
+                       LetOrUse
+                         { IsRecursive = false
+                           Bindings =
+                            [SynBinding
+                               (None, Normal, false, false, [],
+                                PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                                SynValData
+                                  (None,
+                                   SynValInfo ([], SynArgInfo ([], false, None)),
+                                   None),
+                                Named
+                                  (SynIdent (y, None), false, None, (4,8--4,9)),
+                                None, Const (Int32 2, (4,12--4,13)), (4,8--4,9),
+                                Yes (4,4--4,13),
+                                { LeadingKeyword = Let (4,4--4,7)
+                                  InlineKeyword = None
+                                  EqualsRange = Some (4,10--4,11) })]
+                           Body =
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (5,6--5,7)), Ident x, (5,4--5,7)), Ident y,
+                               (5,4--5,9))
+                           Range = (4,4--5,9)
+                           Trivia = { InKeyword = Some (4,14--4,16) } }
+                      Range = (3,4--5,9)
+                      Trivia = { InKeyword = Some (3,14--3,16) } }, (2,4--2,8),
+                  NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
+                               InlineKeyword = None
+                               EqualsRange = Some (2,9--2,10) })], (2,0--5,9),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--6,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [LineComment (3,17--3,55)] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/Return 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 01.fs.bsl
index 86c81fa6d87..849ceee1d2d 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 01.fs.bsl	
@@ -29,7 +29,8 @@ ImplFile
                      (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Return 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 02.fs.bsl
index 678e228062b..083847cead8 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 02.fs.bsl	
@@ -32,7 +32,8 @@ ImplFile
                      (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Return 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 03.fs.bsl
index 467a5f86141..9affdceb647 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 03.fs.bsl	
@@ -29,7 +29,8 @@ ImplFile
                      (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Return 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 04.fs.bsl
index bc6451d72ab..3d1c8c0fa5a 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 04.fs.bsl	
@@ -32,7 +32,8 @@ ImplFile
                      (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Return 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 05.fs.bsl
index beaaf365ecc..a1018d3f54f 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 05.fs.bsl	
@@ -25,7 +25,8 @@ ImplFile
                         (4,10--6,5)), (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Return 06.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 06.fs.bsl
index 04d0ad024e7..48b13666387 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 06.fs.bsl	
@@ -27,7 +27,8 @@ ImplFile
                         (4,10--6,5)), (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Return 07.fs.bsl b/tests/service/data/SyntaxTree/Expression/Return 07.fs.bsl
index d45aa5689ce..2841298aa3f 100644
--- a/tests/service/data/SyntaxTree/Expression/Return 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Return 07.fs.bsl	
@@ -27,7 +27,8 @@ ImplFile
                         (4,10--6,5)), (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/ReturnBang 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/ReturnBang 01.fs.bsl
index 4890e673c4c..58356208224 100644
--- a/tests/service/data/SyntaxTree/Expression/ReturnBang 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/ReturnBang 01.fs.bsl	
@@ -29,7 +29,8 @@ ImplFile
                         (4,10--6,5)), (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/ReturnBang 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/ReturnBang 02.fs.bsl
index 4ff6f08be18..02e9eac0e1c 100644
--- a/tests/service/data/SyntaxTree/Expression/ReturnBang 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/ReturnBang 02.fs.bsl	
@@ -32,7 +32,8 @@ ImplFile
                         (4,10--6,5)), (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/ReturnBang 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/ReturnBang 03.fs.bsl
index 1747359d47d..aef181b4d97 100644
--- a/tests/service/data/SyntaxTree/Expression/ReturnBang 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/ReturnBang 03.fs.bsl	
@@ -28,7 +28,8 @@ ImplFile
                         (4,10--6,5)), (4,4--6,5)), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,5), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Set 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/Set 04.fs.bsl
index 297ef11ba05..2224bb7089a 100644
--- a/tests/service/data/SyntaxTree/Expression/Set 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Set 04.fs.bsl	
@@ -17,7 +17,8 @@ ImplFile
                      (4,4--4,8)), (3,4--3,5), Yes (3,0--4,8),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,8));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,8),
+              { InKeyword = None });
            Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprDoContainsTheRangeOfTheDoKeyword.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprDoContainsTheRangeOfTheDoKeyword.fs.bsl
index 651879d2cb0..54b08da4d54 100644
--- a/tests/service/data/SyntaxTree/Expression/SynExprDoContainsTheRangeOfTheDoKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/SynExprDoContainsTheRangeOfTheDoKeyword.fs.bsl
@@ -20,8 +20,9 @@ ImplFile
                      { SeparatorRange = None }), (2,4--2,5), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--6,18))],
-          PreXmlDocEmpty, [], None, (2,0--7,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--6,18),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--7,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseBangContainsTheRangeOfTheEqualsSign.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseBangContainsTheRangeOfTheEqualsSign.fs.bsl
index 895c8c2f5be..8fe7e58f623 100644
--- a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseBangContainsTheRangeOfTheEqualsSign.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseBangContainsTheRangeOfTheEqualsSign.fs.bsl
@@ -12,40 +12,43 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named (SynIdent (x, None), false, None, (3,9--3,10)),
-                           None, Ident y, (3,4--3,14), Yes (3,4--3,14),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,11--3,12) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named (SynIdent (z, None), false, None, (4,9--4,10)),
-                           None,
-                           App
-                             (NonAtomic, false, Ident someFunction,
-                              Const (Unit, (4,26--4,28)), (4,13--4,28)),
-                           (4,4--4,28), Yes (4,4--4,28),
-                           { LeadingKeyword = And (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,11--4,12) })],
-                       YieldOrReturn
-                         ((false, true), Const (Unit, (5,11--5,13)), (5,4--5,13),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (3,4--5,13),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,11--3,12) }), (2,5--6,1)),
-                 (2,0--6,1)), (2,0--6,1))], PreXmlDocEmpty, [], None, (2,0--6,1),
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (x, None), false, None, (3,9--3,10)),
+                             None, Ident y, (3,4--3,14), Yes (3,4--3,14),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,11--3,12) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (z, None), false, None, (4,9--4,10)),
+                             None,
+                             App
+                               (NonAtomic, false, Ident someFunction,
+                                Const (Unit, (4,26--4,28)), (4,13--4,28)),
+                             (4,4--4,28), Yes (4,4--4,28),
+                             { LeadingKeyword = AndBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,11--4,12) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Const (Unit, (5,11--5,13)),
+                            (5,4--5,13), { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (3,4--5,13)
+                        Trivia = { InKeyword = None } }, (2,5--6,1)), (2,0--6,1)),
+              (2,0--6,1))], PreXmlDocEmpty, [], None, (2,0--6,1),
           { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl
index 250d3b16d79..aed2296debb 100644
--- a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseContainsTheRangeOfInKeyword.fs.bsl
@@ -6,22 +6,22 @@ ImplFile
          ([SynExprLetOrUseContainsTheRangeOfInKeyword], false, AnonModule,
           [Expr
              (LetOrUse
-                (false, false, true, false,
-                 [SynBinding
-                    (None, Normal, false, false, [],
-                     PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector),
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None),
-                     Named (SynIdent (x, None), false, None, (2,4--2,5)), None,
-                     Const (Int32 1, (2,8--2,9)), (2,4--2,5), Yes (2,0--2,9),
-                     { LeadingKeyword = Let (2,0--2,3)
-                       InlineKeyword = None
-                       EqualsRange = Some (2,6--2,7) })],
-                 Const (Unit, (2,13--2,15)), (2,0--2,15),
-                 { LetOrUseKeyword = (2,0--2,3)
-                   InKeyword = Some (2,10--2,12)
-                   EqualsRange = Some (2,6--2,7) }), (2,0--2,15))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [],
+                       PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector),
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None),
+                       Named (SynIdent (x, None), false, None, (2,4--2,5)), None,
+                       Const (Int32 1, (2,8--2,9)), (2,4--2,5), Yes (2,0--2,9),
+                       { LeadingKeyword = Let (2,0--2,3)
+                         InlineKeyword = None
+                         EqualsRange = Some (2,6--2,7) })]
+                  Body = Const (Unit, (2,13--2,15))
+                  Range = (2,0--2,15)
+                  Trivia = { InKeyword = Some (2,10--2,12) } }, (2,0--2,15))],
           PreXmlDocEmpty, [], None, (2,0--2,15), { LeadingKeyword = None })],
       (true, true), { ConditionalDirectives = []
                       WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseDoesNotContainTheRangeOfInKeyword.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseDoesNotContainTheRangeOfInKeyword.fs.bsl
index 1568bde4b7a..4da747b291c 100644
--- a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseDoesNotContainTheRangeOfInKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseDoesNotContainTheRangeOfInKeyword.fs.bsl
@@ -8,22 +8,22 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,0), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (x, None), false, None, (3,4--3,5)),
-                        None, Const (Int32 1, (3,8--3,9)), (3,4--3,5),
-                        Yes (3,0--3,9), { LeadingKeyword = Let (3,0--3,3)
-                                          InlineKeyword = None
-                                          EqualsRange = Some (3,6--3,7) })],
-                    Const (Unit, (4,0--4,2)), (3,0--4,2),
-                    { LetOrUseKeyword = (3,0--3,3)
-                      InKeyword = None
-                      EqualsRange = Some (3,6--3,7) }), (2,0--4,2)), (2,0--4,2))],
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,0), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (x, None), false, None, (3,4--3,5)),
+                          None, Const (Int32 1, (3,8--3,9)), (3,4--3,5),
+                          Yes (3,0--3,9), { LeadingKeyword = Let (3,0--3,3)
+                                            InlineKeyword = None
+                                            EqualsRange = Some (3,6--3,7) })]
+                     Body = Const (Unit, (4,0--4,2))
+                     Range = (3,0--4,2)
+                     Trivia = { InKeyword = None } }, (2,0--4,2)), (2,0--4,2))],
           PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
       (true, true), { ConditionalDirectives = []
                       WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWhereBodyExprStartsWithTokenOfTwoCharactersDoesNotContainTheRangeOfInKeyword.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWhereBodyExprStartsWithTokenOfTwoCharactersDoesNotContainTheRangeOfInKeyword.fs.bsl
index 4efd29655d0..4c2fef9fa8a 100644
--- a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWhereBodyExprStartsWithTokenOfTwoCharactersDoesNotContainTheRangeOfInKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWhereBodyExprStartsWithTokenOfTwoCharactersDoesNotContainTheRangeOfInKeyword.fs.bsl
@@ -11,38 +11,41 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,0), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (e1, None), false, None, (3,4--3,6)),
-                        None,
-                        Downcast
-                          (Ident e,
-                           LongIdent
-                             (SynLongIdent
-                                ([Collections; DictionaryEntry], [(3,26--3,27)],
-                                 [None; None])), (3,9--3,42)), (3,4--3,6),
-                        Yes (3,0--3,42), { LeadingKeyword = Let (3,0--3,3)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (3,7--3,8) })],
-                    Tuple
-                      (false,
-                       [LongIdent
-                          (false,
-                           SynLongIdent ([e1; Key], [(4,2--4,3)], [None; None]),
-                           None, (4,0--4,6));
-                        LongIdent
-                          (false,
-                           SynLongIdent
-                             ([e1; Value], [(4,10--4,11)], [None; None]), None,
-                           (4,8--4,16))], [(4,6--4,7)], (4,0--4,16)),
-                    (3,0--4,16), { LetOrUseKeyword = (3,0--3,3)
-                                   InKeyword = None
-                                   EqualsRange = Some (3,7--3,8) }), (2,0--4,16)),
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,0), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (e1, None), false, None, (3,4--3,6)),
+                          None,
+                          Downcast
+                            (Ident e,
+                             LongIdent
+                               (SynLongIdent
+                                  ([Collections; DictionaryEntry],
+                                   [(3,26--3,27)], [None; None])), (3,9--3,42)),
+                          (3,4--3,6), Yes (3,0--3,42),
+                          { LeadingKeyword = Let (3,0--3,3)
+                            InlineKeyword = None
+                            EqualsRange = Some (3,7--3,8) })]
+                     Body =
+                      Tuple
+                        (false,
+                         [LongIdent
+                            (false,
+                             SynLongIdent
+                               ([e1; Key], [(4,2--4,3)], [None; None]), None,
+                             (4,0--4,6));
+                          LongIdent
+                            (false,
+                             SynLongIdent
+                               ([e1; Value], [(4,10--4,11)], [None; None]), None,
+                             (4,8--4,16))], [(4,6--4,7)], (4,0--4,16))
+                     Range = (3,0--4,16)
+                     Trivia = { InKeyword = Some (4,0--4,2) } }, (2,0--4,16)),
               (2,0--4,16))], PreXmlDocEmpty, [], None, (2,0--5,0),
           { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithAndBangIn 01.fs b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithAndBangIn 01.fs
new file mode 100644
index 00000000000..e379a95709e
--- /dev/null
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithAndBangIn 01.fs	
@@ -0,0 +1,6 @@
+comp {
+    let! a = b in
+    and! c = d in
+    and! e = f in
+    ()
+}
\ No newline at end of file
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithAndBangIn 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithAndBangIn 01.fs.bsl
new file mode 100644
index 00000000000..ac0c37d3233
--- /dev/null
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithAndBangIn 01.fs.bsl	
@@ -0,0 +1,60 @@
+ImplFile
+  (ParsedImplFileInput
+     ("/root/Expression/SynExprLetOrUseWithAndBangIn 01.fs", false,
+      QualifiedNameOfFile SynExprLetOrUseWithAndBangIn 01, [],
+      [SynModuleOrNamespace
+         ([SynExprLetOrUseWithAndBangIn 01], false, AnonModule,
+          [Expr
+             (App
+                (NonAtomic, false, Ident comp,
+                 ComputationExpr
+                   (false,
+                    LetOrUse
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (a, None), false, None, (2,9--2,10)),
+                             None, Ident b, (2,4--2,14), Yes (2,4--2,14),
+                             { LeadingKeyword = LetBang (2,4--2,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (2,11--2,12) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (c, None), false, None, (3,9--3,10)),
+                             None, Ident d, (3,4--3,14), Yes (3,4--3,14),
+                             { LeadingKeyword = AndBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,11--3,12) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (e, None), false, None, (4,9--4,10)),
+                             None, Ident f, (4,4--4,14), Yes (4,4--4,14),
+                             { LeadingKeyword = AndBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,11--4,12) })]
+                        Body = Const (Unit, (5,4--5,6))
+                        Range = (2,4--5,6)
+                        Trivia = { InKeyword = Some (2,15--2,17) } }, (1,5--6,1)),
+                 (1,0--6,1)), (1,0--6,1))], PreXmlDocEmpty, [], None, (1,0--6,1),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
+
+(1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'SynExprLetOrUseWithAndBangIn 01' based on the file name 'SynExprLetOrUseWithAndBangIn 01.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithRecursiveBindingContainsTheRangeOfInKeyword.fs.bsl b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithRecursiveBindingContainsTheRangeOfInKeyword.fs.bsl
index 0f6d62006ba..c9856e44e15 100644
--- a/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithRecursiveBindingContainsTheRangeOfInKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/Expression/SynExprLetOrUseWithRecursiveBindingContainsTheRangeOfInKeyword.fs.bsl
@@ -10,34 +10,34 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (true, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (f, None), false, None, (3,12--3,13)),
-                        None, Const (Unit, (3,16--3,18)), (3,12--3,13),
-                        Yes (3,4--3,18),
-                        { LeadingKeyword = LetRec ((3,4--3,7), (3,8--3,11))
-                          InlineKeyword = None
-                          EqualsRange = Some (3,14--3,15) });
-                     SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((4,8), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (g, None), false, None, (4,8--4,9)),
-                        None, Const (Unit, (4,12--4,14)), (4,8--4,9),
-                        Yes (4,4--4,14), { LeadingKeyword = And (4,4--4,7)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (4,10--4,11) })],
-                    Const (Unit, (5,4--5,6)), (3,4--5,6),
-                    { LetOrUseKeyword = (3,4--3,11)
-                      InKeyword = Some (4,15--4,17)
-                      EqualsRange = Some (3,14--3,15) }), (2,0--5,6)),
+                   { IsRecursive = true
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (f, None), false, None, (3,12--3,13)),
+                          None, Const (Unit, (3,16--3,18)), (3,12--3,13),
+                          Yes (3,4--3,18),
+                          { LeadingKeyword = LetRec ((3,4--3,7), (3,8--3,11))
+                            InlineKeyword = None
+                            EqualsRange = Some (3,14--3,15) });
+                       SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((4,8), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (g, None), false, None, (4,8--4,9)),
+                          None, Const (Unit, (4,12--4,14)), (4,8--4,9),
+                          Yes (4,4--4,14), { LeadingKeyword = And (4,4--4,7)
+                                             InlineKeyword = None
+                                             EqualsRange = Some (4,10--4,11) })]
+                     Body = Const (Unit, (5,4--5,6))
+                     Range = (3,4--5,6)
+                     Trivia = { InKeyword = Some (4,15--4,17) } }, (2,0--5,6)),
               (2,0--5,6))], PreXmlDocEmpty, [], None, (2,0--6,0),
           { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Try - Finally 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - Finally 01.fs.bsl
index 5a03c6066c8..33fe00df1fc 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - Finally 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - Finally 01.fs.bsl	
@@ -19,7 +19,8 @@ ImplFile
                        FinallyKeyword = (5,4--5,11) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--5,13));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--5,13),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - Finally 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - Finally 02.fs.bsl
index d0ad1002eea..b89b53ac8f6 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - Finally 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - Finally 02.fs.bsl	
@@ -19,7 +19,8 @@ ImplFile
                        FinallyKeyword = (5,4--5,11) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,9));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,9),
+              { InKeyword = None });
            Expr (Const (Int32 3, (8,0--8,1)), (8,0--8,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--8,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - Finally 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - Finally 03.fs.bsl
index 05d4bf58c56..a03310a75ca 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - Finally 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - Finally 03.fs.bsl	
@@ -19,7 +19,8 @@ ImplFile
                        FinallyKeyword = (5,4--5,11) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None });
            Expr (Const (Int32 3, (8,0--8,1)), (8,0--8,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--8,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - Finally 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - Finally 04.fs.bsl
index 2efe693eb39..9a3f520f603 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - Finally 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - Finally 04.fs.bsl	
@@ -21,7 +21,8 @@ ImplFile
                        FinallyKeyword = (5,4--5,11) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--5,11));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--5,11),
+              { InKeyword = None });
            Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 01.fs.bsl
index 4b9b32262aa..36269a98a54 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 01.fs.bsl	
@@ -24,7 +24,8 @@ ImplFile
                        WithToEndRange = (5,4--5,15) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--5,15));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--5,15),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 02.fs.bsl
index 2805db17744..7f8f6e16e1f 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 02.fs.bsl	
@@ -24,7 +24,8 @@ ImplFile
                        WithToEndRange = (5,4--6,9) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,9));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,9),
+              { InKeyword = None });
            Expr (Const (Int32 3, (8,0--8,1)), (8,0--8,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--8,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 03.fs.bsl
index 628ff8509d0..008526bc4df 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 03.fs.bsl	
@@ -24,7 +24,8 @@ ImplFile
                        WithToEndRange = (5,4--6,5) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--6,5),
+              { InKeyword = None });
            Expr (Const (Int32 3, (8,0--8,1)), (8,0--8,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--8,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 04.fs.bsl
index 2ff3b16f3c2..eb43b43e8ef 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 04.fs.bsl	
@@ -26,7 +26,8 @@ ImplFile
                        WithToEndRange = (5,4--5,13) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--5,13));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--5,13),
+              { InKeyword = None });
            Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 05.fs.bsl
index f266fe9c97d..ed4495265a0 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 05.fs.bsl	
@@ -25,7 +25,8 @@ ImplFile
                        WithToEndRange = (5,4--5,10) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--5,10));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--5,10),
+              { InKeyword = None });
            Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 06.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 06.fs.bsl
index 367842a5c41..e07b5e0d1d7 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 06.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,8)); Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,8), { InKeyword = None });
+           Expr (Const (Int32 2, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 07.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 07.fs.bsl
index 3e000ea7d4a..807ea2b71cd 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 07.fs.bsl	
@@ -25,7 +25,8 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,22)); Expr (Const (Int32 4, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,22), { InKeyword = None });
+           Expr (Const (Int32 4, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 08.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 08.fs.bsl
index 8c78faa7c9c..f17a4c1bdd5 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 08.fs.bsl	
@@ -25,7 +25,8 @@ ImplFile
                        WithToEndRange = (5,4--5,17) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--5,17));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--5,17),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try - With 09.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try - With 09.fs.bsl
index efc7f1e612f..03940fb6220 100644
--- a/tests/service/data/SyntaxTree/Expression/Try - With 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try - With 09.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,8)); Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,8), { InKeyword = None });
+           Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Try 01.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try 01.fs.bsl
index 61abb3656ca..e5b00ab0c06 100644
--- a/tests/service/data/SyntaxTree/Expression/Try 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try 01.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--4,9)); Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
+              (3,0--4,9), { InKeyword = None });
+           Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Try 02.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try 02.fs.bsl
index 57f8ddac5e9..9c2a801dc89 100644
--- a/tests/service/data/SyntaxTree/Expression/Try 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try 02.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                        WithToEndRange = (4,7--4,7) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--4,7));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--4,7),
+              { InKeyword = None });
            Expr (Const (Int32 1, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/Try with - Missing expr 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/Try with - Missing expr 04.fs.bsl
index 93be9bc6723..04f58935f08 100644
--- a/tests/service/data/SyntaxTree/Expression/Try with - Missing expr 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Try with - Missing expr 04.fs.bsl	
@@ -7,21 +7,21 @@ ImplFile
           [Expr
              (TryWith
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((5,0), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None), Wild (5,4--5,5), None,
-                        Const (Unit, (5,8--5,10)), (5,4--5,5), Yes (5,0--5,10),
-                        { LeadingKeyword = Let (5,0--5,3)
-                          InlineKeyword = None
-                          EqualsRange = Some (5,6--5,7) })],
-                    ArbitraryAfterError ("seqExpr", (5,10--5,10)), (5,0--5,10),
-                    { LetOrUseKeyword = (5,0--5,3)
-                      InKeyword = None
-                      EqualsRange = Some (5,6--5,7) }), [], (3,0--5,10),
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((5,0), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None), Wild (5,4--5,5), None,
+                          Const (Unit, (5,8--5,10)), (5,4--5,5), Yes (5,0--5,10),
+                          { LeadingKeyword = Let (5,0--5,3)
+                            InlineKeyword = None
+                            EqualsRange = Some (5,6--5,7) })]
+                     Body = ArbitraryAfterError ("seqExpr", (5,10--5,10))
+                     Range = (5,0--5,10)
+                     Trivia = { InKeyword = None } }, [], (3,0--5,10),
                  Yes (3,0--3,3), Yes (5,10--5,10),
                  { TryKeyword = (3,0--3,3)
                    TryToWithRange = (3,0--5,10)
diff --git a/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 10.fs.bsl b/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 10.fs.bsl
index c7bf2053a39..2595dd0fc1a 100644
--- a/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 10.fs.bsl	
@@ -19,7 +19,8 @@ ImplFile
                      [(3,9--3,10)], (3,8--3,10)), (3,4--3,5), Yes (3,0--3,10),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--3,10))],
+                    EqualsRange = Some (3,6--3,7) })], (3,0--3,10),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,10), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 11.fs.bsl b/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 11.fs.bsl
index 92db48f5d0d..ea944d2beda 100644
--- a/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 11.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/Tuple - Missing item 11.fs.bsl	
@@ -16,7 +16,7 @@ ImplFile
                   Yes (3,4--3,7), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--3,7))],
+              (3,0--3,7), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,7), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/While 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/While 03.fs.bsl
index f97b2ef3702..388e60dbb47 100644
--- a/tests/service/data/SyntaxTree/Expression/While 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/While 03.fs.bsl	
@@ -17,7 +17,8 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--4,14)); Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
+              (3,0--4,14), { InKeyword = None });
+           Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/While 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/While 04.fs.bsl
index bc9409d1352..cb31897188d 100644
--- a/tests/service/data/SyntaxTree/Expression/While 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/While 04.fs.bsl	
@@ -17,7 +17,7 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--4,14))],
+              (3,0--4,14), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,14), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/While 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/While 05.fs.bsl
index 63f49be132f..add6c1711a9 100644
--- a/tests/service/data/SyntaxTree/Expression/While 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/While 05.fs.bsl	
@@ -16,7 +16,8 @@ ImplFile
                      Const (Int32 2, (5,8--5,9)), (4,4--5,9)), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--5,9));
+                               EqualsRange = Some (3,6--3,7) })], (3,0--5,9),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/While 06.fs.bsl b/tests/service/data/SyntaxTree/Expression/While 06.fs.bsl
index fa00ab9ef46..967c6a88ecf 100644
--- a/tests/service/data/SyntaxTree/Expression/While 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/While 06.fs.bsl	
@@ -16,7 +16,8 @@ ImplFile
                      Const (Int32 2, (5,4--5,5)), (4,4--5,5)), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--5,5));
+                               EqualsRange = Some (3,6--3,7) })], (3,0--5,5),
+              { InKeyword = None });
            Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Expression/WhileBang 03.fs.bsl b/tests/service/data/SyntaxTree/Expression/WhileBang 03.fs.bsl
index 9cd7ffdf523..c9ce876b390 100644
--- a/tests/service/data/SyntaxTree/Expression/WhileBang 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/WhileBang 03.fs.bsl	
@@ -26,7 +26,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--4,35), { LeadingKeyword = Let (3,0--3,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (3,6--3,7) })],
-              (3,0--4,35)); Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
+              (3,0--4,35), { InKeyword = None });
+           Expr (Const (Int32 2, (6,0--6,1)), (6,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/WhileBang 04.fs.bsl b/tests/service/data/SyntaxTree/Expression/WhileBang 04.fs.bsl
index 6afb7df4944..90038fb639e 100644
--- a/tests/service/data/SyntaxTree/Expression/WhileBang 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/WhileBang 04.fs.bsl	
@@ -26,7 +26,7 @@ ImplFile
                   (3,4--3,5), Yes (3,0--4,35), { LeadingKeyword = Let (3,0--3,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (3,6--3,7) })],
-              (3,0--4,35))],
+              (3,0--4,35), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,35), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/WhileBang 05.fs.bsl b/tests/service/data/SyntaxTree/Expression/WhileBang 05.fs.bsl
index 68269efd975..c4101026b60 100644
--- a/tests/service/data/SyntaxTree/Expression/WhileBang 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/WhileBang 05.fs.bsl	
@@ -26,7 +26,8 @@ ImplFile
                   Yes (3,0--5,9), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,9)); Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,9), { InKeyword = None });
+           Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Expression/WhileBang 06.fs.bsl b/tests/service/data/SyntaxTree/Expression/WhileBang 06.fs.bsl
index 733ec5ee330..c5fca5485d7 100644
--- a/tests/service/data/SyntaxTree/Expression/WhileBang 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Expression/WhileBang 06.fs.bsl	
@@ -26,7 +26,8 @@ ImplFile
                   Yes (3,0--5,5), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--5,5)); Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
+              (3,0--5,5), { InKeyword = None });
+           Expr (Const (Int32 3, (7,0--7,1)), (7,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Extern/Extern 01.fs.bsl b/tests/service/data/SyntaxTree/Extern/Extern 01.fs.bsl
index 7e70df62f0d..0c8b8194081 100644
--- a/tests/service/data/SyntaxTree/Extern/Extern 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Extern/Extern 01.fs.bsl	
@@ -95,10 +95,10 @@ ImplFile
                   (1,0--2,70), NoneAtInvisible,
                   { LeadingKeyword = Extern (2,0--2,6)
                     InlineKeyword = None
-                    EqualsRange = None })], (1,0--2,70))], PreXmlDocEmpty, [],
-          None, (1,0--2,70), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                    EqualsRange = None })], (1,0--2,70), { InKeyword = None })],
+          PreXmlDocEmpty, [], None, (1,0--2,70), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'Extern 01' based on the file name 'Extern 01.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/Extern/ExternKeywordIsPresentInTrivia.fs.bsl b/tests/service/data/SyntaxTree/Extern/ExternKeywordIsPresentInTrivia.fs.bsl
index cd770091661..58cf2b8f292 100644
--- a/tests/service/data/SyntaxTree/Extern/ExternKeywordIsPresentInTrivia.fs.bsl
+++ b/tests/service/data/SyntaxTree/Extern/ExternKeywordIsPresentInTrivia.fs.bsl
@@ -39,8 +39,8 @@ ImplFile
                   (2,0--2,28), NoneAtInvisible,
                   { LeadingKeyword = Extern (2,0--2,6)
                     InlineKeyword = None
-                    EqualsRange = None })], (2,0--2,28))], PreXmlDocEmpty, [],
-          None, (2,0--2,28), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                    EqualsRange = None })], (2,0--2,28), { InKeyword = None })],
+          PreXmlDocEmpty, [], None, (2,0--2,28), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/AndKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/AndKeyword.fs.bsl
index c1c8979edcb..4aa2963c410 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/AndKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/AndKeyword.fs.bsl
@@ -56,8 +56,9 @@ ImplFile
                      Const (Int32 1, (3,14--3,15)), (3,10--3,15)), (3,4--3,7),
                   NoneAtLet, { LeadingKeyword = And (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,8--3,9) })], (2,0--3,15))],
-          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                               EqualsRange = Some (3,8--3,9) })], (2,0--3,15),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--4,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/DoKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/DoKeyword.fs.bsl
index e70a4e5463e..14ae9d51f17 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/DoKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/DoKeyword.fs.bsl
@@ -22,12 +22,12 @@ ImplFile
                              Const (Unit, (3,7--3,9)), (3,4--3,9), NoneAtDo,
                              { LeadingKeyword = Do (3,4--3,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (3,4--3,9))],
-                     (3,4--3,9)), [], None, (2,5--3,9),
-                  { LeadingKeyword = Type (2,0--2,4)
-                    EqualsRange = Some (2,7--2,8)
-                    WithKeyword = None })], (2,0--3,9))], PreXmlDocEmpty, [],
-          None, (2,0--4,0), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                               EqualsRange = None })], false, false, (3,4--3,9),
+                         { InKeyword = None })], (3,4--3,9)), [], None,
+                  (2,5--3,9), { LeadingKeyword = Type (2,0--2,4)
+                                EqualsRange = Some (2,7--2,8)
+                                WithKeyword = None })], (2,0--3,9))],
+          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/DoStaticKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/DoStaticKeyword.fs.bsl
index 29b5e5c9688..74f4d74b17e 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/DoStaticKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/DoStaticKeyword.fs.bsl
@@ -23,12 +23,12 @@ ImplFile
                              { LeadingKeyword =
                                 StaticDo ((3,4--3,10), (3,11--3,13))
                                InlineKeyword = None
-                               EqualsRange = None })], true, false, (3,4--3,16))],
-                     (3,4--3,16)), [], None, (2,5--3,16),
-                  { LeadingKeyword = Type (2,0--2,4)
-                    EqualsRange = Some (2,7--2,8)
-                    WithKeyword = None })], (2,0--3,16))], PreXmlDocEmpty, [],
-          None, (2,0--4,0), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                               EqualsRange = None })], true, false, (3,4--3,16),
+                         { InKeyword = None })], (3,4--3,16)), [], None,
+                  (2,5--3,16), { LeadingKeyword = Type (2,0--2,4)
+                                 EqualsRange = Some (2,7--2,8)
+                                 WithKeyword = None })], (2,0--3,16))],
+          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/ExternKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/ExternKeyword.fs.bsl
index 189a700298e..8caba5ac11f 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/ExternKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/ExternKeyword.fs.bsl
@@ -39,8 +39,8 @@ ImplFile
                   (2,0--2,17), NoneAtInvisible,
                   { LeadingKeyword = Extern (2,0--2,6)
                     InlineKeyword = None
-                    EqualsRange = None })], (2,0--2,17))], PreXmlDocEmpty, [],
-          None, (2,0--2,17), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                    EqualsRange = None })], (2,0--2,17), { InKeyword = None })],
+          PreXmlDocEmpty, [], None, (2,0--2,17), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/LetKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/LetKeyword.fs.bsl
index c8ae05916a7..982311fccfe 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/LetKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/LetKeyword.fs.bsl
@@ -30,8 +30,9 @@ ImplFile
                      Const (Int32 1, (2,14--2,15)), (2,10--2,15)), (2,4--2,7),
                   NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
                                InlineKeyword = None
-                               EqualsRange = Some (2,8--2,9) })], (2,0--2,15))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                               EqualsRange = Some (2,8--2,9) })], (2,0--2,15),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/LetRecKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/LetRecKeyword.fs.bsl
index 816ba3b4e59..2569de7dba4 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/LetRecKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/LetRecKeyword.fs.bsl
@@ -31,8 +31,9 @@ ImplFile
                      Const (Int32 1, (2,18--2,19)), (2,14--2,19)), (2,8--2,11),
                   NoneAtLet, { LeadingKeyword = LetRec ((2,0--2,3), (2,4--2,7))
                                InlineKeyword = None
-                               EqualsRange = Some (2,12--2,13) })], (2,0--2,19))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                               EqualsRange = Some (2,12--2,13) })], (2,0--2,19),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetKeyword.fs.bsl
index 94e3e11ef7f..ef71149048c 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetKeyword.fs.bsl
@@ -29,11 +29,11 @@ ImplFile
                                 StaticLet ((3,4--3,10), (3,11--3,14))
                                InlineKeyword = None
                                EqualsRange = Some (3,18--3,19) })], true, false,
-                         (3,4--3,24))], (3,4--3,24)), [], None, (2,5--3,24),
-                  { LeadingKeyword = Type (2,0--2,4)
-                    EqualsRange = Some (2,7--2,8)
-                    WithKeyword = None })], (2,0--3,24))], PreXmlDocEmpty, [],
-          None, (2,0--4,0), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                         (3,4--3,24), { InKeyword = None })], (3,4--3,24)), [],
+                  None, (2,5--3,24), { LeadingKeyword = Type (2,0--2,4)
+                                       EqualsRange = Some (2,7--2,8)
+                                       WithKeyword = None })], (2,0--3,24))],
+          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetRecKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetRecKeyword.fs.bsl
index 06aa352f3d3..5251188440d 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetRecKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/StaticLetRecKeyword.fs.bsl
@@ -35,11 +35,11 @@ ImplFile
                                   ((3,4--3,10), (3,11--3,14), (3,15--3,18))
                                InlineKeyword = None
                                EqualsRange = Some (3,30--3,31) })], true, true,
-                         (3,4--3,41))], (3,4--3,41)), [], None, (2,5--3,41),
-                  { LeadingKeyword = Type (2,0--2,4)
-                    EqualsRange = Some (2,7--2,8)
-                    WithKeyword = None })], (2,0--3,41))], PreXmlDocEmpty, [],
-          None, (2,0--4,0), { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                         (3,4--3,41), { InKeyword = None })], (3,4--3,41)), [],
+                  None, (2,5--3,41), { LeadingKeyword = Type (2,0--2,4)
+                                       EqualsRange = Some (2,7--2,8)
+                                       WithKeyword = None })], (2,0--3,41))],
+          PreXmlDocEmpty, [], None, (2,0--4,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/UseKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/UseKeyword.fs.bsl
index 22fb03d8cfa..23f377c33cd 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/UseKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/UseKeyword.fs.bsl
@@ -7,27 +7,26 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, true, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (x, None), false, None, (3,8--3,9)),
-                        None,
-                        App
-                          (Atomic, false, Ident X, Const (Unit, (3,13--3,15)),
-                           (3,12--3,15)), (3,8--3,9), Yes (3,4--3,15),
-                        { LeadingKeyword = Use (3,4--3,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (3,10--3,11) })],
-                    Const (Unit, (4,4--4,6)), (3,4--4,6),
-                    { LetOrUseKeyword = (3,4--3,7)
-                      InKeyword = None
-                      EqualsRange = Some (3,10--3,11) }), (2,0--4,6)),
-              (2,0--4,6))], PreXmlDocEmpty, [], None, (2,0--5,0),
-          { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (x, None), false, None, (3,8--3,9)),
+                          None,
+                          App
+                            (Atomic, false, Ident X, Const (Unit, (3,13--3,15)),
+                             (3,12--3,15)), (3,8--3,9), Yes (3,4--3,15),
+                          { LeadingKeyword = Use (3,4--3,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (3,10--3,11) })]
+                     Body = Const (Unit, (4,4--4,6))
+                     Range = (3,4--4,6)
+                     Trivia = { InKeyword = None } }, (2,0--4,6)), (2,0--4,6))],
+          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/LeadingKeyword/UseRecKeyword.fs.bsl b/tests/service/data/SyntaxTree/LeadingKeyword/UseRecKeyword.fs.bsl
index 38be60e5029..8acd19c10ae 100644
--- a/tests/service/data/SyntaxTree/LeadingKeyword/UseRecKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/LeadingKeyword/UseRecKeyword.fs.bsl
@@ -7,27 +7,26 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (true, true, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (x, None), false, None, (3,12--3,13)),
-                        None,
-                        App
-                          (Atomic, false, Ident X, Const (Unit, (3,17--3,19)),
-                           (3,16--3,19)), (3,12--3,13), Yes (3,4--3,19),
-                        { LeadingKeyword = UseRec ((3,4--3,7), (3,8--3,11))
-                          InlineKeyword = None
-                          EqualsRange = Some (3,14--3,15) })],
-                    Const (Unit, (4,4--4,6)), (3,4--4,6),
-                    { LetOrUseKeyword = (3,4--3,11)
-                      InKeyword = None
-                      EqualsRange = Some (3,14--3,15) }), (2,0--4,6)),
-              (2,0--4,6))], PreXmlDocEmpty, [], None, (2,0--5,0),
-          { LeadingKeyword = None })], (true, true),
-      { ConditionalDirectives = []
-        WarnDirectives = []
-        CodeComments = [] }, set []))
+                   { IsRecursive = true
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (x, None), false, None, (3,12--3,13)),
+                          None,
+                          App
+                            (Atomic, false, Ident X, Const (Unit, (3,17--3,19)),
+                             (3,16--3,19)), (3,12--3,13), Yes (3,4--3,19),
+                          { LeadingKeyword = UseRec ((3,4--3,7), (3,8--3,11))
+                            InlineKeyword = None
+                            EqualsRange = Some (3,14--3,15) })]
+                     Body = Const (Unit, (4,4--4,6))
+                     Range = (3,4--4,6)
+                     Trivia = { InKeyword = None } }, (2,0--4,6)), (2,0--4,6))],
+          PreXmlDocEmpty, [], None, (2,0--5,0), { LeadingKeyword = None })],
+      (true, true), { ConditionalDirectives = []
+                      WarnDirectives = []
+                      CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/MatchClause/Missing expr 05.fs.bsl b/tests/service/data/SyntaxTree/MatchClause/Missing expr 05.fs.bsl
index c998f9ea0ff..f84c19d5a60 100644
--- a/tests/service/data/SyntaxTree/MatchClause/Missing expr 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/MatchClause/Missing expr 05.fs.bsl	
@@ -24,8 +24,8 @@ ImplFile
                                     WithKeyword = (4,13--4,17) }), (3,4--3,5),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,6--3,7) })], (3,0--5,10));
-           Expr (Const (Unit, (7,0--7,2)), (7,0--7,2))],
+                               EqualsRange = Some (3,6--3,7) })], (3,0--5,10),
+              { InKeyword = None }); Expr (Const (Unit, (7,0--7,2)), (7,0--7,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/MatchClause/RangeOfMultipleSynMatchClause.fs.bsl b/tests/service/data/SyntaxTree/MatchClause/RangeOfMultipleSynMatchClause.fs.bsl
index 0baa92feccc..4aefd1685f1 100644
--- a/tests/service/data/SyntaxTree/MatchClause/RangeOfMultipleSynMatchClause.fs.bsl
+++ b/tests/service/data/SyntaxTree/MatchClause/RangeOfMultipleSynMatchClause.fs.bsl
@@ -7,27 +7,29 @@ ImplFile
           [Expr
              (TryWith
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named
-                          (SynIdent (content, None), false, None, (3,8--3,15)),
-                        None,
-                        App
-                          (NonAtomic, false, Ident tryDownloadFile, Ident url,
-                           (3,18--3,37)), (3,8--3,15), Yes (3,4--3,37),
-                        { LeadingKeyword = Let (3,4--3,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (3,16--3,17) })],
-                    App
-                      (NonAtomic, false, Ident Some, Ident content, (4,4--4,16)),
-                    (3,4--4,16), { LetOrUseKeyword = (3,4--3,7)
-                                   InKeyword = None
-                                   EqualsRange = Some (3,16--3,17) }),
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named
+                            (SynIdent (content, None), false, None, (3,8--3,15)),
+                          None,
+                          App
+                            (NonAtomic, false, Ident tryDownloadFile, Ident url,
+                             (3,18--3,37)), (3,8--3,15), Yes (3,4--3,37),
+                          { LeadingKeyword = Let (3,4--3,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (3,16--3,17) })]
+                     Body =
+                      App
+                        (NonAtomic, false, Ident Some, Ident content,
+                         (4,4--4,16))
+                     Range = (3,4--4,16)
+                     Trivia = { InKeyword = None } },
                  [SynMatchClause
                     (Named (SynIdent (ex, None), false, None, (6,2--6,4)), None,
                      Sequential
diff --git a/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClause.fs.bsl b/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClause.fs.bsl
index bd05c6d0580..80f4b1ae04d 100644
--- a/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClause.fs.bsl
+++ b/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClause.fs.bsl
@@ -7,27 +7,29 @@ ImplFile
           [Expr
              (TryWith
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named
-                          (SynIdent (content, None), false, None, (3,8--3,15)),
-                        None,
-                        App
-                          (NonAtomic, false, Ident tryDownloadFile, Ident url,
-                           (3,18--3,37)), (3,8--3,15), Yes (3,4--3,37),
-                        { LeadingKeyword = Let (3,4--3,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (3,16--3,17) })],
-                    App
-                      (NonAtomic, false, Ident Some, Ident content, (4,4--4,16)),
-                    (3,4--4,16), { LetOrUseKeyword = (3,4--3,7)
-                                   InKeyword = None
-                                   EqualsRange = Some (3,16--3,17) }),
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named
+                            (SynIdent (content, None), false, None, (3,8--3,15)),
+                          None,
+                          App
+                            (NonAtomic, false, Ident tryDownloadFile, Ident url,
+                             (3,18--3,37)), (3,8--3,15), Yes (3,4--3,37),
+                          { LeadingKeyword = Let (3,4--3,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (3,16--3,17) })]
+                     Body =
+                      App
+                        (NonAtomic, false, Ident Some, Ident content,
+                         (4,4--4,16))
+                     Range = (3,4--4,16)
+                     Trivia = { InKeyword = None } },
                  [SynMatchClause
                     (Named (SynIdent (ex, None), false, None, (5,5--5,7)), None,
                      Sequential
diff --git a/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClauseFollowedByBar.fs.bsl b/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClauseFollowedByBar.fs.bsl
index 3f955a9be98..5d981526a15 100644
--- a/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClauseFollowedByBar.fs.bsl
+++ b/tests/service/data/SyntaxTree/MatchClause/RangeOfSingleSynMatchClauseFollowedByBar.fs.bsl
@@ -7,27 +7,29 @@ ImplFile
           [Expr
              (TryWith
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named
-                          (SynIdent (content, None), false, None, (3,8--3,15)),
-                        None,
-                        App
-                          (NonAtomic, false, Ident tryDownloadFile, Ident url,
-                           (3,18--3,37)), (3,8--3,15), Yes (3,4--3,37),
-                        { LeadingKeyword = Let (3,4--3,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (3,16--3,17) })],
-                    App
-                      (NonAtomic, false, Ident Some, Ident content, (4,4--4,16)),
-                    (3,4--4,16), { LetOrUseKeyword = (3,4--3,7)
-                                   InKeyword = None
-                                   EqualsRange = Some (3,16--3,17) }),
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((3,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named
+                            (SynIdent (content, None), false, None, (3,8--3,15)),
+                          None,
+                          App
+                            (NonAtomic, false, Ident tryDownloadFile, Ident url,
+                             (3,18--3,37)), (3,8--3,15), Yes (3,4--3,37),
+                          { LeadingKeyword = Let (3,4--3,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (3,16--3,17) })]
+                     Body =
+                      App
+                        (NonAtomic, false, Ident Some, Ident content,
+                         (4,4--4,16))
+                     Range = (3,4--4,16)
+                     Trivia = { InKeyword = None } },
                  [SynMatchClause
                     (Named (SynIdent (ex, None), false, None, (6,2--6,4)), None,
                      Const (Unit, (7,4--7,6)), (6,2--7,6), Yes,
diff --git a/tests/service/data/SyntaxTree/Measure/MeasureContainsTheRangeOfTheConstant.fs.bsl b/tests/service/data/SyntaxTree/Measure/MeasureContainsTheRangeOfTheConstant.fs.bsl
index 541c856bb70..9dff13b0b57 100644
--- a/tests/service/data/SyntaxTree/Measure/MeasureContainsTheRangeOfTheConstant.fs.bsl
+++ b/tests/service/data/SyntaxTree/Measure/MeasureContainsTheRangeOfTheConstant.fs.bsl
@@ -21,7 +21,7 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,16), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,16));
+              (2,0--2,16), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -39,8 +39,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,17), { LeadingKeyword = Let (3,0--3,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (3,6--3,7) })],
-              (3,0--3,17))], PreXmlDocEmpty, [], None, (2,0--4,0),
-          { LeadingKeyword = None })], (true, true),
+              (3,0--3,17), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--4,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Member/Do 01.fs.bsl b/tests/service/data/SyntaxTree/Member/Do 01.fs.bsl
index ebcf90b0c06..0706eb256c4 100644
--- a/tests/service/data/SyntaxTree/Member/Do 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Do 01.fs.bsl	
@@ -21,7 +21,8 @@ ImplFile
                              Const (Int32 1, (5,7--5,8)), (5,4--5,8), NoneAtDo,
                              { LeadingKeyword = Do (5,4--5,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (5,4--5,8));
+                               EqualsRange = None })], false, false, (5,4--5,8),
+                         { InKeyword = None });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -32,11 +33,11 @@ ImplFile
                              Const (Int32 2, (7,7--7,8)), (7,4--7,8), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,8))],
-                     (5,4--7,8)), [], None, (3,5--7,8),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,8))],
+                               EqualsRange = None })], false, false, (7,4--7,8),
+                         { InKeyword = None })], (5,4--7,8)), [], None,
+                  (3,5--7,8), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,8))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Do 02.fs.bsl b/tests/service/data/SyntaxTree/Member/Do 02.fs.bsl
index 41cc0daa22e..e2d791b5860 100644
--- a/tests/service/data/SyntaxTree/Member/Do 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Do 02.fs.bsl	
@@ -23,7 +23,8 @@ ImplFile
                              { LeadingKeyword =
                                 StaticDo ((5,4--5,10), (5,11--5,13))
                                InlineKeyword = None
-                               EqualsRange = None })], true, false, (5,4--5,15));
+                               EqualsRange = None })], true, false, (5,4--5,15),
+                         { InKeyword = None });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -34,11 +35,11 @@ ImplFile
                              Const (Int32 2, (7,7--7,8)), (7,4--7,8), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,8))],
-                     (5,4--7,8)), [], None, (3,5--7,8),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,8))],
+                               EqualsRange = None })], false, false, (7,4--7,8),
+                         { InKeyword = None })], (5,4--7,8)), [], None,
+                  (3,5--7,8), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,8))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Do 03.fs.bsl b/tests/service/data/SyntaxTree/Member/Do 03.fs.bsl
index 51c20b468ad..f7238a3bb35 100644
--- a/tests/service/data/SyntaxTree/Member/Do 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Do 03.fs.bsl	
@@ -24,7 +24,8 @@ ImplFile
                              { LeadingKeyword =
                                 StaticDo ((5,4--5,10), (5,11--5,13))
                                InlineKeyword = None
-                               EqualsRange = None })], true, false, (5,4--5,13));
+                               EqualsRange = None })], true, false, (5,4--5,13),
+                         { InKeyword = None });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -35,11 +36,11 @@ ImplFile
                              Const (Unit, (7,7--7,9)), (7,4--7,9), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,9))],
-                     (5,4--7,9)), [], None, (3,5--7,9),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,9))],
+                               EqualsRange = None })], false, false, (7,4--7,9),
+                         { InKeyword = None })], (5,4--7,9)), [], None,
+                  (3,5--7,9), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,9))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,9), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Do 04.fs.bsl b/tests/service/data/SyntaxTree/Member/Do 04.fs.bsl
index 6bb13a90212..940c313f086 100644
--- a/tests/service/data/SyntaxTree/Member/Do 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Do 04.fs.bsl	
@@ -23,7 +23,7 @@ ImplFile
                              NoneAtDo, { LeadingKeyword = Do (5,4--5,6)
                                          InlineKeyword = None
                                          EqualsRange = None })], false, false,
-                         (5,4--5,6));
+                         (5,4--5,6), { InKeyword = None });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -34,11 +34,11 @@ ImplFile
                              Const (Unit, (7,7--7,9)), (7,4--7,9), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,9))],
-                     (5,4--7,9)), [], None, (3,5--7,9),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,9))],
+                               EqualsRange = None })], false, false, (7,4--7,9),
+                         { InKeyword = None })], (5,4--7,9)), [], None,
+                  (3,5--7,9), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,9))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,9), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Interface 05.fs.bsl b/tests/service/data/SyntaxTree/Member/Interface 05.fs.bsl
index d284b54e20c..04592eb93d6 100644
--- a/tests/service/data/SyntaxTree/Member/Interface 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Interface 05.fs.bsl	
@@ -28,7 +28,8 @@ ImplFile
                   Const (Int32 1, (6,8--6,9)), (6,4--6,5), Yes (6,0--6,9),
                   { LeadingKeyword = Let (6,0--6,3)
                     InlineKeyword = None
-                    EqualsRange = Some (6,6--6,7) })], (6,0--6,9))],
+                    EqualsRange = Some (6,6--6,7) })], (6,0--6,9),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,9), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Interface 06.fs.bsl b/tests/service/data/SyntaxTree/Member/Interface 06.fs.bsl
index b841c289ab7..2552febe621 100644
--- a/tests/service/data/SyntaxTree/Member/Interface 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Interface 06.fs.bsl	
@@ -27,10 +27,10 @@ ImplFile
                              { LeadingKeyword = Let (6,4--6,7)
                                InlineKeyword = None
                                EqualsRange = Some (6,10--6,11) })], false, false,
-                         (6,4--6,14))], (4,4--6,14)), [], None, (3,5--6,14),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--6,14))],
+                         (6,4--6,14), { InKeyword = None })], (4,4--6,14)), [],
+                  None, (3,5--6,14), { LeadingKeyword = Type (3,0--3,4)
+                                       EqualsRange = Some (3,7--3,8)
+                                       WithKeyword = None })], (3,0--6,14))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,14), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Let 01.fs.bsl b/tests/service/data/SyntaxTree/Member/Let 01.fs.bsl
index 50dca73426c..653c09604bc 100644
--- a/tests/service/data/SyntaxTree/Member/Let 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Let 01.fs.bsl	
@@ -24,7 +24,7 @@ ImplFile
                              { LeadingKeyword = Let (5,4--5,7)
                                InlineKeyword = None
                                EqualsRange = Some (5,10--5,11) })], false, false,
-                         (5,4--5,13));
+                         (5,4--7,6), { InKeyword = Some (7,4--7,6) });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -35,11 +35,11 @@ ImplFile
                              Const (Int32 2, (7,7--7,8)), (7,4--7,8), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,8))],
-                     (5,4--7,8)), [], None, (3,5--7,8),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,8))],
+                               EqualsRange = None })], false, false, (7,4--7,8),
+                         { InKeyword = None })], (5,4--7,8)), [], None,
+                  (3,5--7,8), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,8))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Let 02.fs.bsl b/tests/service/data/SyntaxTree/Member/Let 02.fs.bsl
index fc1ab916f24..20ae2960751 100644
--- a/tests/service/data/SyntaxTree/Member/Let 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Let 02.fs.bsl	
@@ -24,7 +24,7 @@ ImplFile
                              { LeadingKeyword = Let (5,4--5,7)
                                InlineKeyword = None
                                EqualsRange = Some (5,10--5,11) })], false, false,
-                         (5,4--5,11));
+                         (5,4--7,6), { InKeyword = Some (7,4--7,6) });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -35,11 +35,11 @@ ImplFile
                              Const (Int32 2, (7,7--7,8)), (7,4--7,8), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,8))],
-                     (5,4--7,8)), [], None, (3,5--7,8),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,8))],
+                               EqualsRange = None })], false, false, (7,4--7,8),
+                         { InKeyword = None })], (5,4--7,8)), [], None,
+                  (3,5--7,8), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,8))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Let 03.fs.bsl b/tests/service/data/SyntaxTree/Member/Let 03.fs.bsl
index d6656bcd492..33be1f235c5 100644
--- a/tests/service/data/SyntaxTree/Member/Let 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Let 03.fs.bsl	
@@ -23,7 +23,8 @@ ImplFile
                              (5,8--5,9), Yes (5,4--5,9),
                              { LeadingKeyword = Let (5,4--5,7)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (5,4--5,9));
+                               EqualsRange = None })], false, false, (5,4--7,6),
+                         { InKeyword = Some (7,4--7,6) });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -34,11 +35,11 @@ ImplFile
                              Const (Int32 2, (7,7--7,8)), (7,4--7,8), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,8))],
-                     (5,4--7,8)), [], None, (3,5--7,8),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,8))],
+                               EqualsRange = None })], false, false, (7,4--7,8),
+                         { InKeyword = None })], (5,4--7,8)), [], None,
+                  (3,5--7,8), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,8))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Let 04.fs.bsl b/tests/service/data/SyntaxTree/Member/Let 04.fs.bsl
index 41a0f46443e..9f14e561f96 100644
--- a/tests/service/data/SyntaxTree/Member/Let 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Let 04.fs.bsl	
@@ -11,7 +11,9 @@ ImplFile
                      false, None, (3,5--3,6)),
                   ObjectModel
                     (Unspecified,
-                     [LetBindings ([], false, false, (5,4--5,7));
+                     [LetBindings
+                        ([], false, false, (5,4--7,6),
+                         { InKeyword = Some (7,4--7,6) });
                       LetBindings
                         ([SynBinding
                             (None, Do, false, false, [], PreXmlDocEmpty,
@@ -22,11 +24,11 @@ ImplFile
                              Const (Int32 2, (7,7--7,8)), (7,4--7,8), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,8))],
-                     (5,4--7,8)), [], None, (3,5--7,8),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,8))],
+                               EqualsRange = None })], false, false, (7,4--7,8),
+                         { InKeyword = None })], (5,4--7,8)), [], None,
+                  (3,5--7,8), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,8))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Member/Let 05.fs b/tests/service/data/SyntaxTree/Member/Let 05.fs
new file mode 100644
index 00000000000..ce2f54b7a4f
--- /dev/null
+++ b/tests/service/data/SyntaxTree/Member/Let 05.fs	
@@ -0,0 +1,7 @@
+module Module
+
+type Foo() =
+    let a = 0 in
+    let y = 1 in
+    let x = 0 in
+    member this.A = a
diff --git a/tests/service/data/SyntaxTree/Member/Let 05.fs.bsl b/tests/service/data/SyntaxTree/Member/Let 05.fs.bsl
new file mode 100644
index 00000000000..9426e515461
--- /dev/null
+++ b/tests/service/data/SyntaxTree/Member/Let 05.fs.bsl	
@@ -0,0 +1,98 @@
+ImplFile
+  (ParsedImplFileInput
+     ("/root/Member/Let 05.fs", false, QualifiedNameOfFile Module, [],
+      [SynModuleOrNamespace
+         ([Module], false, NamedModule,
+          [Types
+             ([SynTypeDefn
+                 (SynComponentInfo
+                    ([], None, [], [Foo],
+                     PreXmlDoc ((3,0), FSharp.Compiler.Xml.XmlDocCollector),
+                     false, None, (3,5--3,8)),
+                  ObjectModel
+                    (Unspecified,
+                     [ImplicitCtor
+                        (None, [], Const (Unit, (3,8--3,10)), None,
+                         PreXmlDoc ((3,8), FSharp.Compiler.Xml.XmlDocCollector),
+                         (3,5--3,8), { AsKeyword = None });
+                      LetBindings
+                        ([SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named (SynIdent (a, None), false, None, (4,8--4,9)),
+                             None, Const (Int32 0, (4,12--4,13)), (4,8--4,9),
+                             Yes (4,4--4,13),
+                             { LeadingKeyword = Let (4,4--4,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,10--4,11) })], false, false,
+                         (4,4--4,16), { InKeyword = Some (4,14--4,16) });
+                      LetBindings
+                        ([SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((5,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named (SynIdent (y, None), false, None, (5,8--5,9)),
+                             None, Const (Int32 1, (5,12--5,13)), (5,8--5,9),
+                             Yes (5,4--5,13),
+                             { LeadingKeyword = Let (5,4--5,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,10--5,11) })], false, false,
+                         (5,4--5,16), { InKeyword = Some (5,14--5,16) });
+                      LetBindings
+                        ([SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((6,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named (SynIdent (x, None), false, None, (6,8--6,9)),
+                             None, Const (Int32 0, (6,12--6,13)), (6,8--6,9),
+                             Yes (6,4--6,13),
+                             { LeadingKeyword = Let (6,4--6,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (6,10--6,11) })], false, false,
+                         (6,4--6,16), { InKeyword = Some (6,14--6,16) });
+                      Member
+                        (SynBinding
+                           (None, Normal, false, false, [],
+                            PreXmlDoc ((7,4), FSharp.Compiler.Xml.XmlDocCollector),
+                            SynValData
+                              (Some { IsInstance = true
+                                      IsDispatchSlot = false
+                                      IsOverrideOrExplicitImpl = false
+                                      IsFinal = false
+                                      GetterOrSetterIsCompilerGenerated = false
+                                      MemberKind = Member },
+                               SynValInfo
+                                 ([[SynArgInfo ([], false, None)]; []],
+                                  SynArgInfo ([], false, None)), None),
+                            LongIdent
+                              (SynLongIdent
+                                 ([this; A], [(7,15--7,16)], [None; None]), None,
+                               None, Pats [], None, (7,11--7,17)), None, Ident a,
+                            (7,11--7,17), NoneAtInvisible,
+                            { LeadingKeyword = Member (7,4--7,10)
+                              InlineKeyword = None
+                              EqualsRange = Some (7,18--7,19) }), (7,4--7,21))],
+                     (4,4--7,21)), [],
+                  Some
+                    (ImplicitCtor
+                       (None, [], Const (Unit, (3,8--3,10)), None,
+                        PreXmlDoc ((3,8), FSharp.Compiler.Xml.XmlDocCollector),
+                        (3,5--3,8), { AsKeyword = None })), (3,5--7,21),
+                  { LeadingKeyword = Type (3,0--3,4)
+                    EqualsRange = Some (3,11--3,12)
+                    WithKeyword = None })], (3,0--7,21))],
+          PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
+          (1,0--7,21), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Member/Static 01.fs.bsl b/tests/service/data/SyntaxTree/Member/Static 01.fs.bsl
index 4993c476447..5a7647188b2 100644
--- a/tests/service/data/SyntaxTree/Member/Static 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Member/Static 01.fs.bsl	
@@ -42,11 +42,11 @@ ImplFile
                              Const (Unit, (7,7--7,9)), (7,4--7,9), NoneAtDo,
                              { LeadingKeyword = Do (7,4--7,6)
                                InlineKeyword = None
-                               EqualsRange = None })], false, false, (7,4--7,9))],
-                     (5,4--7,9)), [], None, (3,5--7,9),
-                  { LeadingKeyword = Type (3,0--3,4)
-                    EqualsRange = Some (3,7--3,8)
-                    WithKeyword = None })], (3,0--7,9))],
+                               EqualsRange = None })], false, false, (7,4--7,9),
+                         { InKeyword = None })], (5,4--7,9)), [], None,
+                  (3,5--7,9), { LeadingKeyword = Type (3,0--3,4)
+                                EqualsRange = Some (3,7--3,8)
+                                WithKeyword = None })], (3,0--7,9))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,9), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/MemberFlag/SynExprObjMembersHaveCorrectKeywords.fs.bsl b/tests/service/data/SyntaxTree/MemberFlag/SynExprObjMembersHaveCorrectKeywords.fs.bsl
index c820010e740..905d4abcc41 100644
--- a/tests/service/data/SyntaxTree/MemberFlag/SynExprObjMembersHaveCorrectKeywords.fs.bsl
+++ b/tests/service/data/SyntaxTree/MemberFlag/SynExprObjMembersHaveCorrectKeywords.fs.bsl
@@ -104,8 +104,9 @@ ImplFile
                      (3,4--7,34)), (2,4--2,7), Yes (2,0--7,34),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,8--2,9) })], (2,0--7,34))],
-          PreXmlDocEmpty, [], None, (2,0--8,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,8--2,9) })], (2,0--7,34),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--8,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 01.fs.bsl b/tests/service/data/SyntaxTree/ModuleMember/Let 01.fs.bsl
index 1623f819216..56bc668322a 100644
--- a/tests/service/data/SyntaxTree/ModuleMember/Let 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 01.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   Yes (3,0--3,9), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--3,9)); Expr (Const (Int32 2, (5,0--5,1)), (5,0--5,1))],
+              (3,0--3,9), { InKeyword = None });
+           Expr (Const (Int32 2, (5,0--5,1)), (5,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 02.fs.bsl b/tests/service/data/SyntaxTree/ModuleMember/Let 02.fs.bsl
index 5ee1e17fb11..a463512f96a 100644
--- a/tests/service/data/SyntaxTree/ModuleMember/Let 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 02.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Yes (3,4--3,7), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
                                     EqualsRange = Some (3,6--3,7) })],
-              (3,0--3,7)); Expr (Const (Int32 1, (5,0--5,1)), (5,0--5,1))],
+              (3,0--3,7), { InKeyword = None });
+           Expr (Const (Int32 1, (5,0--5,1)), (5,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 03.fs.bsl b/tests/service/data/SyntaxTree/ModuleMember/Let 03.fs.bsl
index 3d562c39590..e727e2402b3 100644
--- a/tests/service/data/SyntaxTree/ModuleMember/Let 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 03.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   ArbitraryAfterError ("localBinding2", (3,5--3,5)), (3,4--3,5),
                   Yes (3,0--3,5), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--3,5));
+                                    EqualsRange = None })], (3,0--3,5),
+              { InKeyword = None });
            Expr (Const (Int32 1, (5,0--5,1)), (5,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 04.fs.bsl b/tests/service/data/SyntaxTree/ModuleMember/Let 04.fs.bsl
index d03ca1555db..cc5644ac55a 100644
--- a/tests/service/data/SyntaxTree/ModuleMember/Let 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 04.fs.bsl	
@@ -3,7 +3,7 @@ ImplFile
      ("/root/ModuleMember/Let 04.fs", false, QualifiedNameOfFile Module, [],
       [SynModuleOrNamespace
          ([Module], false, NamedModule,
-          [Let (false, [], (3,0--3,3));
+          [Let (false, [], (3,0--3,3), { InKeyword = None });
            Expr (Const (Int32 1, (5,0--5,1)), (5,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 05.fs.bsl b/tests/service/data/SyntaxTree/ModuleMember/Let 05.fs.bsl
index 8f2b8b3bb5b..4d13c765715 100644
--- a/tests/service/data/SyntaxTree/ModuleMember/Let 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 05.fs.bsl	
@@ -18,7 +18,7 @@ ImplFile
                   (1,4--1,10), Yes (1,0--1,10),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = None })], (1,0--1,10));
+                    EqualsRange = None })], (1,0--1,10), { InKeyword = None });
            Expr (Const (Unit, (3,0--3,2)), (3,0--3,2))], PreXmlDocEmpty, [],
           None, (1,0--3,2), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 06.fs b/tests/service/data/SyntaxTree/ModuleMember/Let 06.fs
new file mode 100644
index 00000000000..3eac7ebf286
--- /dev/null
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 06.fs	
@@ -0,0 +1,4 @@
+let a = 0 in
+let y = 1 in
+let x = 0 in
+()
diff --git a/tests/service/data/SyntaxTree/ModuleMember/Let 06.fs.bsl b/tests/service/data/SyntaxTree/ModuleMember/Let 06.fs.bsl
new file mode 100644
index 00000000000..6803b681fa0
--- /dev/null
+++ b/tests/service/data/SyntaxTree/ModuleMember/Let 06.fs.bsl	
@@ -0,0 +1,51 @@
+ImplFile
+  (ParsedImplFileInput
+     ("/root/ModuleMember/Let 06.fs", false, QualifiedNameOfFile Let 06, [],
+      [SynModuleOrNamespace
+         ([Let 06], false, AnonModule,
+          [Let
+             (false,
+              [SynBinding
+                 (None, Normal, false, false, [],
+                  PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector),
+                  SynValData
+                    (None, SynValInfo ([], SynArgInfo ([], false, None)), None),
+                  Named (SynIdent (a, None), false, None, (1,4--1,5)), None,
+                  Const (Int32 0, (1,8--1,9)), (1,4--1,5), Yes (1,0--1,9),
+                  { LeadingKeyword = Let (1,0--1,3)
+                    InlineKeyword = None
+                    EqualsRange = Some (1,6--1,7) })], (1,0--1,12),
+              { InKeyword = Some (1,10--1,12) });
+           Let
+             (false,
+              [SynBinding
+                 (None, Normal, false, false, [],
+                  PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector),
+                  SynValData
+                    (None, SynValInfo ([], SynArgInfo ([], false, None)), None),
+                  Named (SynIdent (y, None), false, None, (2,4--2,5)), None,
+                  Const (Int32 1, (2,8--2,9)), (2,4--2,5), Yes (2,0--2,9),
+                  { LeadingKeyword = Let (2,0--2,3)
+                    InlineKeyword = None
+                    EqualsRange = Some (2,6--2,7) })], (2,0--2,12),
+              { InKeyword = Some (2,10--2,12) });
+           Let
+             (false,
+              [SynBinding
+                 (None, Normal, false, false, [],
+                  PreXmlDoc ((3,0), FSharp.Compiler.Xml.XmlDocCollector),
+                  SynValData
+                    (None, SynValInfo ([], SynArgInfo ([], false, None)), None),
+                  Named (SynIdent (x, None), false, None, (3,4--3,5)), None,
+                  Const (Int32 0, (3,8--3,9)), (3,4--3,5), Yes (3,0--3,9),
+                  { LeadingKeyword = Let (3,0--3,3)
+                    InlineKeyword = None
+                    EqualsRange = Some (3,6--3,7) })], (3,0--3,12),
+              { InKeyword = Some (3,10--3,12) });
+           Expr (Const (Unit, (4,0--4,2)), (4,0--4,2))], PreXmlDocEmpty, [],
+          None, (1,0--4,2), { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
+
+(1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'Let 06' based on the file name 'Let 06.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/ModuleOrNamespace/Module - Attribute 01.fs.bsl b/tests/service/data/SyntaxTree/ModuleOrNamespace/Module - Attribute 01.fs.bsl
index d4b48f2982d..3f478bce58a 100644
--- a/tests/service/data/SyntaxTree/ModuleOrNamespace/Module - Attribute 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/ModuleOrNamespace/Module - Attribute 01.fs.bsl	
@@ -22,7 +22,8 @@ ImplFile
                      (5,17--5,20)), (5,4--5,5), Yes (5,0--5,20),
                   { LeadingKeyword = Let (5,0--5,3)
                     InlineKeyword = None
-                    EqualsRange = Some (5,15--5,16) })], (5,0--5,20))],
+                    EqualsRange = Some (5,15--5,16) })], (5,0--5,20),
+              { InKeyword = None })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector),
           [{ Attributes = [{ TypeName = SynLongIdent ([Foo], [], [None])
                              ArgExpr = Const (Unit, (2,4--2,7))
diff --git a/tests/service/data/SyntaxTree/ModuleOrNamespace/ModuleShouldContainModuleKeyword.fs.bsl b/tests/service/data/SyntaxTree/ModuleOrNamespace/ModuleShouldContainModuleKeyword.fs.bsl
index e020cf20444..adb907aea72 100644
--- a/tests/service/data/SyntaxTree/ModuleOrNamespace/ModuleShouldContainModuleKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/ModuleOrNamespace/ModuleShouldContainModuleKeyword.fs.bsl
@@ -43,7 +43,7 @@ ImplFile
                       Yes (13,4--13,14), { LeadingKeyword = Let (13,4--13,7)
                                            InlineKeyword = None
                                            EqualsRange = Some (13,10--13,11) })],
-                  (13,4--13,14))], false, (12,0--13,14),
+                  (13,4--13,14), { InKeyword = None })], false, (12,0--13,14),
               { ModuleKeyword = Some (12,0--12,6)
                 EqualsRange = Some (12,40--12,41) })],
           PreXmlDoc ((5,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/ModuleOrNamespace/MultipleDeclaredNamespacesShouldHaveARangeThatStartsAtTheNamespaceKeyword.fs.bsl b/tests/service/data/SyntaxTree/ModuleOrNamespace/MultipleDeclaredNamespacesShouldHaveARangeThatStartsAtTheNamespaceKeyword.fs.bsl
index 023212b2912..e014e4eee8b 100644
--- a/tests/service/data/SyntaxTree/ModuleOrNamespace/MultipleDeclaredNamespacesShouldHaveARangeThatStartsAtTheNamespaceKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/ModuleOrNamespace/MultipleDeclaredNamespacesShouldHaveARangeThatStartsAtTheNamespaceKeyword.fs.bsl
@@ -31,8 +31,8 @@ ImplFile
                   Const (Int32 42, (9,8--9,10)), (9,4--9,5), Yes (9,0--9,10),
                   { LeadingKeyword = Let (9,0--9,3)
                     InlineKeyword = None
-                    EqualsRange = Some (9,6--9,7) })], (9,0--9,10))],
-          PreXmlDocEmpty, [], None, (7,0--9,10),
+                    EqualsRange = Some (9,6--9,7) })], (9,0--9,10),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (7,0--9,10),
           { LeadingKeyword = Namespace (7,0--7,9) })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/ModuleOrNamespace/NamespaceShouldContainNamespaceKeyword.fs.bsl b/tests/service/data/SyntaxTree/ModuleOrNamespace/NamespaceShouldContainNamespaceKeyword.fs.bsl
index 885b0b117c8..62ec379c8c3 100644
--- a/tests/service/data/SyntaxTree/ModuleOrNamespace/NamespaceShouldContainNamespaceKeyword.fs.bsl
+++ b/tests/service/data/SyntaxTree/ModuleOrNamespace/NamespaceShouldContainNamespaceKeyword.fs.bsl
@@ -22,7 +22,7 @@ ImplFile
                       Yes (4,4--4,14), { LeadingKeyword = Let (4,4--4,7)
                                          InlineKeyword = None
                                          EqualsRange = Some (4,10--4,11) })],
-                  (4,4--4,14))], false, (3,0--4,14),
+                  (4,4--4,14), { InKeyword = None })], false, (3,0--4,14),
               { ModuleKeyword = Some (3,0--3,6)
                 EqualsRange = Some (3,11--3,12) })], PreXmlDocEmpty, [], None,
           (2,0--4,14), { LeadingKeyword = Namespace (2,0--2,9) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/NestedModule/NestedModuleWithBeginEndAndDecls.fs.bsl b/tests/service/data/SyntaxTree/NestedModule/NestedModuleWithBeginEndAndDecls.fs.bsl
index 23937834db6..2cbc6fa5c0a 100644
--- a/tests/service/data/SyntaxTree/NestedModule/NestedModuleWithBeginEndAndDecls.fs.bsl
+++ b/tests/service/data/SyntaxTree/NestedModule/NestedModuleWithBeginEndAndDecls.fs.bsl
@@ -22,7 +22,7 @@ ImplFile
                       Yes (5,8--5,17), { LeadingKeyword = Let (5,8--5,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (5,14--5,15) })],
-                  (5,8--5,17))], false, (3,0--6,7),
+                  (5,8--5,17), { InKeyword = None })], false, (3,0--6,7),
               { ModuleKeyword = Some (3,0--3,6)
                 EqualsRange = Some (3,9--3,10) })], PreXmlDocEmpty, [], None,
           (1,0--6,7), { LeadingKeyword = Namespace (1,0--1,9) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Nullness/FunctionArgAsPatternWithNullCase.fs.bsl b/tests/service/data/SyntaxTree/Nullness/FunctionArgAsPatternWithNullCase.fs.bsl
index 9c06341d4c1..1163ccbe7a0 100644
--- a/tests/service/data/SyntaxTree/Nullness/FunctionArgAsPatternWithNullCase.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/FunctionArgAsPatternWithNullCase.fs.bsl
@@ -42,8 +42,8 @@ ImplFile
                   (1,4--1,47), NoneAtLet, { LeadingKeyword = Let (1,0--1,3)
                                             InlineKeyword = None
                                             EqualsRange = Some (1,48--1,49) })],
-              (1,0--1,52))], PreXmlDocEmpty, [], None, (1,0--2,0),
-          { LeadingKeyword = None })], (true, true),
+              (1,0--1,52), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (1,0--2,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/GenericFunctionReturnTypeNotStructNull.fs.bsl b/tests/service/data/SyntaxTree/Nullness/GenericFunctionReturnTypeNotStructNull.fs.bsl
index bc7e62dbcf8..beef982627b 100644
--- a/tests/service/data/SyntaxTree/Nullness/GenericFunctionReturnTypeNotStructNull.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/GenericFunctionReturnTypeNotStructNull.fs.bsl
@@ -36,8 +36,9 @@ ImplFile
                         (1,15--1,50)), (1,53--1,57)), (1,4--1,12), NoneAtLet,
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,51--1,52) })], (1,0--1,57))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,51--1,52) })], (1,0--1,57),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNotNull.fs.bsl b/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNotNull.fs.bsl
index 93b7e56d1ec..ced1fa2ca34 100644
--- a/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNotNull.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNotNull.fs.bsl
@@ -31,8 +31,9 @@ ImplFile
                   None, Const (Int32 42, (1,39--1,41)), (1,4--1,36), NoneAtLet,
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,37--1,38) })], (1,0--1,41))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,37--1,38) })], (1,0--1,41),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNull.fs.bsl b/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNull.fs.bsl
index 07032a6b6a8..04a03f8646c 100644
--- a/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNull.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/GenericFunctionTyparNull.fs.bsl
@@ -30,8 +30,8 @@ ImplFile
                   (1,4--1,32), NoneAtLet, { LeadingKeyword = Let (1,0--1,3)
                                             InlineKeyword = None
                                             EqualsRange = Some (1,33--1,34) })],
-              (1,0--1,37))], PreXmlDocEmpty, [], None, (1,0--2,0),
-          { LeadingKeyword = None })], (true, true),
+              (1,0--1,37), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (1,0--2,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/IntListOrNull.fs.bsl b/tests/service/data/SyntaxTree/Nullness/IntListOrNull.fs.bsl
index 89aba46b669..a7ad67de505 100644
--- a/tests/service/data/SyntaxTree/Nullness/IntListOrNull.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/IntListOrNull.fs.bsl
@@ -33,8 +33,8 @@ ImplFile
                   Yes (1,0--1,28), { LeadingKeyword = Let (1,0--1,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (1,24--1,25) })],
-              (1,0--1,28))], PreXmlDocEmpty, [], None, (1,0--2,0),
-          { LeadingKeyword = None })], (true, true),
+              (1,0--1,28), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (1,0--2,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/IntListOrNullOrNullOrNull.fs.bsl b/tests/service/data/SyntaxTree/Nullness/IntListOrNullOrNullOrNull.fs.bsl
index 73acd0cd00d..2ba92634916 100644
--- a/tests/service/data/SyntaxTree/Nullness/IntListOrNullOrNullOrNull.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/IntListOrNullOrNullOrNull.fs.bsl
@@ -32,10 +32,11 @@ ImplFile
                         { BarRange = (1,17--1,18) }), (1,23--1,23)), (1,4--1,5),
                   Yes (1,0--1,23), { LeadingKeyword = Let (1,0--1,3)
                                      InlineKeyword = None
-                                     EqualsRange = None })], (1,0--1,23))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                                     EqualsRange = None })], (1,0--1,23),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,24)-(1,25) parse error Unexpected symbol '|' (directly before 'null') in binding. Expected '=' or other token.
diff --git a/tests/service/data/SyntaxTree/Nullness/NullAnnotatedExpression.fs.bsl b/tests/service/data/SyntaxTree/Nullness/NullAnnotatedExpression.fs.bsl
index 1b3916e4190..115fe6c5406 100644
--- a/tests/service/data/SyntaxTree/Nullness/NullAnnotatedExpression.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/NullAnnotatedExpression.fs.bsl
@@ -67,8 +67,9 @@ ImplFile
                   (1,4--1,5), Yes (1,0--1,70),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,64--1,65) })], (1,0--1,70))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,64--1,65) })], (1,0--1,70),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/StringOrNull.fs.bsl b/tests/service/data/SyntaxTree/Nullness/StringOrNull.fs.bsl
index 14b3dde2c67..7d205e16fef 100644
--- a/tests/service/data/SyntaxTree/Nullness/StringOrNull.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/StringOrNull.fs.bsl
@@ -26,8 +26,9 @@ ImplFile
                   (1,4--1,5), Yes (1,0--1,28),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,22--1,23) })], (1,0--1,28))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,22--1,23) })], (1,0--1,28),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Nullness/StringOrNullInFunctionArg.fs.bsl b/tests/service/data/SyntaxTree/Nullness/StringOrNullInFunctionArg.fs.bsl
index 162ebbfbdf3..89a2cf25e55 100644
--- a/tests/service/data/SyntaxTree/Nullness/StringOrNullInFunctionArg.fs.bsl
+++ b/tests/service/data/SyntaxTree/Nullness/StringOrNullInFunctionArg.fs.bsl
@@ -31,8 +31,9 @@ ImplFile
                   None, Const (Int32 42, (1,34--1,36)), (1,4--1,31), NoneAtLet,
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,32--1,33) })], (1,0--1,36))],
-          PreXmlDocEmpty, [], None, (1,0--2,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,32--1,33) })], (1,0--1,36),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--2,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 01.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 01.fs.bsl
index d181dbabbb8..e17e494ec24 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 01.fs.bsl	
@@ -26,10 +26,11 @@ ImplFile
                      (1,28--1,34)), (1,4--1,25), Yes (1,0--1,34),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,26--1,27) })], (1,0--1,34))],
-          PreXmlDocEmpty, [], None, (1,0--1,34), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,26--1,27) })], (1,0--1,34),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,34),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,34) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 01' based on the file name 'ActivePatternAnd 01.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 02.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 02.fs.bsl
index 2197d608c40..2f5a82923a5 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 02.fs.bsl	
@@ -27,10 +27,11 @@ ImplFile
                      (1,30--1,36)), (1,4--1,27), Yes (1,0--1,36),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,28--1,29) })], (1,0--1,36))],
-          PreXmlDocEmpty, [], None, (1,0--1,36), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,28--1,29) })], (1,0--1,36),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,36),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,36) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 02' based on the file name 'ActivePatternAnd 02.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 03.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 03.fs.bsl
index bf6cf297f48..ede0f22bf73 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 03.fs.bsl	
@@ -27,10 +27,11 @@ ImplFile
                      (1,30--1,36)), (1,4--1,27), Yes (1,0--1,36),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,28--1,29) })], (1,0--1,36))],
-          PreXmlDocEmpty, [], None, (1,0--1,36), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,28--1,29) })], (1,0--1,36),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,36),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,36) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 03' based on the file name 'ActivePatternAnd 03.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 04.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 04.fs.bsl
index 8da67b53c6f..078810edb06 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 04.fs.bsl	
@@ -28,10 +28,11 @@ ImplFile
                      (1,32--1,38)), (1,4--1,29), Yes (1,0--1,38),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,30--1,31) })], (1,0--1,38))],
-          PreXmlDocEmpty, [], None, (1,0--1,38), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,30--1,31) })], (1,0--1,38),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,38),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,38) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 04' based on the file name 'ActivePatternAnd 04.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 05.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 05.fs.bsl
index 290c17827df..7e0399ceca4 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 05.fs.bsl	
@@ -28,10 +28,11 @@ ImplFile
                      (1,32--1,38)), (1,4--1,29), Yes (1,0--1,38),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,30--1,31) })], (1,0--1,38))],
-          PreXmlDocEmpty, [], None, (1,0--1,38), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,30--1,31) })], (1,0--1,38),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,38),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,38) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 05' based on the file name 'ActivePatternAnd 05.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 06.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 06.fs.bsl
index b4226cc1f83..98b7e0916b2 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 06.fs.bsl	
@@ -31,10 +31,11 @@ ImplFile
                      (1,38--1,44)), (1,4--1,35), Yes (1,0--1,44),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,36--1,37) })], (1,0--1,44))],
-          PreXmlDocEmpty, [], None, (1,0--1,44), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,36--1,37) })], (1,0--1,44),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,44),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,44) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 06' based on the file name 'ActivePatternAnd 06.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 07.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 07.fs.bsl
index c4970b53599..c34ab974240 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 07.fs.bsl	
@@ -30,10 +30,11 @@ ImplFile
                      (1,34--1,40)), (1,4--1,31), Yes (1,0--1,40),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,32--1,33) })], (1,0--1,40))],
-          PreXmlDocEmpty, [], None, (1,0--1,40), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,32--1,33) })], (1,0--1,40),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,40),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,40) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 07' based on the file name 'ActivePatternAnd 07.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 08.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 08.fs.bsl
index 277fb1aeac1..5f8fa0acebc 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternAnd 08.fs.bsl	
@@ -30,10 +30,11 @@ ImplFile
                      (1,36--1,42)), (1,4--1,33), Yes (1,0--1,42),
                   { LeadingKeyword = Let (1,0--1,3)
                     InlineKeyword = None
-                    EqualsRange = Some (1,34--1,35) })], (1,0--1,42))],
-          PreXmlDocEmpty, [], None, (1,0--1,42), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (1,34--1,35) })], (1,0--1,42),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--1,42),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(1,42) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternAnd 08' based on the file name 'ActivePatternAnd 08.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternDefinition.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternDefinition.fs.bsl
index c4b9f6a0919..9e6d6ffa604 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternDefinition.fs.bsl
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternDefinition.fs.bsl
@@ -59,8 +59,9 @@ ImplFile
                        IfToThenRange = (2,28--2,45) }), (2,4--2,25), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,26--2,27) })], (2,0--2,59))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,26--2,27) })], (2,0--2,59),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 01.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 01.fs.bsl
index 5862ca0ad2b..ac1133e1ee3 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 01.fs.bsl	
@@ -35,10 +35,11 @@ ImplFile
                      (3,24--3,30)), (3,4--3,21), Yes (3,0--3,30),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,22--3,23) })], (3,0--3,30))],
-          PreXmlDocEmpty, [], None, (1,0--3,30), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,22--3,23) })], (3,0--3,30),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,30),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 01' based on the file name 'ActivePatternExceptionAnd 01.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 02.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 02.fs.bsl
index 8ebb6648227..8a76322c49c 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 02.fs.bsl	
@@ -36,10 +36,11 @@ ImplFile
                      (3,26--3,32)), (3,4--3,23), Yes (3,0--3,32),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,24--3,25) })], (3,0--3,32))],
-          PreXmlDocEmpty, [], None, (1,0--3,32), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,24--3,25) })], (3,0--3,32),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,32),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 02' based on the file name 'ActivePatternExceptionAnd 02.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 03.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 03.fs.bsl
index 2574d438123..bb42a8a84ec 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 03.fs.bsl	
@@ -36,10 +36,11 @@ ImplFile
                      (3,26--3,32)), (3,4--3,23), Yes (3,0--3,32),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,24--3,25) })], (3,0--3,32))],
-          PreXmlDocEmpty, [], None, (1,0--3,32), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,24--3,25) })], (3,0--3,32),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,32),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 03' based on the file name 'ActivePatternExceptionAnd 03.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 04.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 04.fs.bsl
index 74cdc1226cb..ba20595b372 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 04.fs.bsl	
@@ -37,10 +37,11 @@ ImplFile
                      (3,28--3,34)), (3,4--3,25), Yes (3,0--3,34),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,26--3,27) })], (3,0--3,34))],
-          PreXmlDocEmpty, [], None, (1,0--3,34), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,26--3,27) })], (3,0--3,34),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,34),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 04' based on the file name 'ActivePatternExceptionAnd 04.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 05.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 05.fs.bsl
index 53656ca36c6..b68a48ed341 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 05.fs.bsl	
@@ -37,10 +37,11 @@ ImplFile
                      (3,28--3,34)), (3,4--3,25), Yes (3,0--3,34),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,26--3,27) })], (3,0--3,34))],
-          PreXmlDocEmpty, [], None, (1,0--3,34), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,26--3,27) })], (3,0--3,34),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,34),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 05' based on the file name 'ActivePatternExceptionAnd 05.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 06.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 06.fs.bsl
index e96412948a7..21bd795221c 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 06.fs.bsl	
@@ -40,10 +40,11 @@ ImplFile
                      (3,34--3,40)), (3,4--3,31), Yes (3,0--3,40),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,32--3,33) })], (3,0--3,40))],
-          PreXmlDocEmpty, [], None, (1,0--3,40), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,32--3,33) })], (3,0--3,40),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,40),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 06' based on the file name 'ActivePatternExceptionAnd 06.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 07.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 07.fs.bsl
index 5da96ee160d..34655b86d20 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 07.fs.bsl	
@@ -38,10 +38,11 @@ ImplFile
                      (3,30--3,36)), (3,4--3,27), Yes (3,0--3,36),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,28--3,29) })], (3,0--3,36))],
-          PreXmlDocEmpty, [], None, (1,0--3,36), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,28--3,29) })], (3,0--3,36),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,36),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 07' based on the file name 'ActivePatternExceptionAnd 07.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 08.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 08.fs.bsl
index b9c67aaa65a..84ce27a6781 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/OperatorName/ActivePatternExceptionAnd 08.fs.bsl	
@@ -38,10 +38,11 @@ ImplFile
                      (3,32--3,38)), (3,4--3,29), Yes (3,0--3,38),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,30--3,31) })], (3,0--3,38))],
-          PreXmlDocEmpty, [], None, (1,0--3,38), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (3,30--3,31) })], (3,0--3,38),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--3,38),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (1,0)-(2,0) parse warning The declarations in this file will be placed in an implicit module 'ActivePatternExceptionAnd 08' based on the file name 'ActivePatternExceptionAnd 08.fs'. However this is not a valid F# identifier, so the contents will not be accessible from other files. Consider renaming the file or adding a 'module' or 'namespace' declaration at the top of the file.
diff --git a/tests/service/data/SyntaxTree/OperatorName/CustomOperatorDefinition.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/CustomOperatorDefinition.fs.bsl
index af3de67443e..bfe1edd8570 100644
--- a/tests/service/data/SyntaxTree/OperatorName/CustomOperatorDefinition.fs.bsl
+++ b/tests/service/data/SyntaxTree/OperatorName/CustomOperatorDefinition.fs.bsl
@@ -37,8 +37,9 @@ ImplFile
                      (2,14--2,19)), (2,4--2,11), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,12--2,13) })], (2,0--2,19))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,12--2,13) })], (2,0--2,19),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/OperatorName/ObjectModelWithTwoMembers.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/ObjectModelWithTwoMembers.fs.bsl
index c610b0e59d5..6a073559389 100644
--- a/tests/service/data/SyntaxTree/OperatorName/ObjectModelWithTwoMembers.fs.bsl
+++ b/tests/service/data/SyntaxTree/OperatorName/ObjectModelWithTwoMembers.fs.bsl
@@ -32,7 +32,7 @@ ImplFile
                              { LeadingKeyword = Let (3,4--3,7)
                                InlineKeyword = None
                                EqualsRange = Some (3,26--3,27) })], false, false,
-                         (3,4--3,29));
+                         (3,4--3,29), { InKeyword = None });
                       GetSetMember
                         (Some
                            (SynBinding
diff --git a/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinition.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinition.fs.bsl
index 1af2f13c764..eea2cad6200 100644
--- a/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinition.fs.bsl
+++ b/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinition.fs.bsl
@@ -47,8 +47,9 @@ ImplFile
                        WithKeyword = (2,45--2,49) }), (2,4--2,34), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,35--2,36) })], (2,0--2,88))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,35--2,36) })], (2,0--2,88),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinitionWithoutParameters.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinitionWithoutParameters.fs.bsl
index d2f6c09c3a0..3253f26b962 100644
--- a/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinitionWithoutParameters.fs.bsl
+++ b/tests/service/data/SyntaxTree/OperatorName/PartialActivePatternDefinitionWithoutParameters.fs.bsl
@@ -24,8 +24,9 @@ ImplFile
                      (2,20--2,33)), (2,4--2,17), Yes (2,0--2,33),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,18--2,19) })], (2,0--2,33))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,18--2,19) })], (2,0--2,33),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/OperatorName/QualifiedOperatorExpression.fs.bsl b/tests/service/data/SyntaxTree/OperatorName/QualifiedOperatorExpression.fs.bsl
index 7db9838fe40..e6a9d22b312 100644
--- a/tests/service/data/SyntaxTree/OperatorName/QualifiedOperatorExpression.fs.bsl
+++ b/tests/service/data/SyntaxTree/OperatorName/QualifiedOperatorExpression.fs.bsl
@@ -39,8 +39,9 @@ ImplFile
                         (2,25--2,38)), Ident x, (2,25--2,40)), (2,4--2,22),
                   NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
                                InlineKeyword = None
-                               EqualsRange = Some (2,23--2,24) })], (2,0--2,40))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                               EqualsRange = Some (2,23--2,24) })], (2,0--2,40),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Pattern/And 01.fs.bsl b/tests/service/data/SyntaxTree/Pattern/And 01.fs.bsl
index dfc0b7f79b1..78d262c63aa 100644
--- a/tests/service/data/SyntaxTree/Pattern/And 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/And 01.fs.bsl	
@@ -48,7 +48,8 @@ ImplFile
                                     WithKeyword = (4,12--4,16) }), (3,4--3,7),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13))],
+                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,13), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/And 02.fs.bsl b/tests/service/data/SyntaxTree/Pattern/And 02.fs.bsl
index 217728c591c..3b1dc38b3ac 100644
--- a/tests/service/data/SyntaxTree/Pattern/And 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/And 02.fs.bsl	
@@ -50,7 +50,8 @@ ImplFile
                                     WithKeyword = (4,12--4,16) }), (3,4--3,7),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13))],
+                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,13), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/And 03.fs.bsl b/tests/service/data/SyntaxTree/Pattern/And 03.fs.bsl
index 2e65f951157..6f9be87082d 100644
--- a/tests/service/data/SyntaxTree/Pattern/And 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/And 03.fs.bsl	
@@ -49,7 +49,8 @@ ImplFile
                                     WithKeyword = (4,12--4,16) }), (3,4--3,7),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13))],
+                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,13), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/And 04.fs.bsl b/tests/service/data/SyntaxTree/Pattern/And 04.fs.bsl
index f049c2f689c..c7bec480021 100644
--- a/tests/service/data/SyntaxTree/Pattern/And 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/And 04.fs.bsl	
@@ -51,7 +51,8 @@ ImplFile
                                     WithKeyword = (4,12--4,16) }), (3,4--3,7),
                   NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                InlineKeyword = None
-                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13))],
+                               EqualsRange = Some (3,8--3,9) })], (3,0--6,13),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,13), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 03.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 03.fs.bsl
index 95af9d360b3..58d4c80beee 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 03.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   Const (Unit, (3,13--3,15)), (3,4--3,10), Yes (3,0--3,15),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,11--3,12) })], (3,0--3,15))],
+                    EqualsRange = Some (3,11--3,12) })], (3,0--3,15),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,15), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 04.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 04.fs.bsl
index b7347690d10..6cdec4fa9ef 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 04.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   Const (Unit, (3,11--3,13)), (3,4--3,8), Yes (3,0--3,13),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,9--3,10) })], (3,0--3,13))],
+                    EqualsRange = Some (3,9--3,10) })], (3,0--3,13),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,13), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 06.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 06.fs.bsl
index 662ca2e2655..6d80728ba47 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 06.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   ArbitraryAfterError ("localBinding2", (3,8--3,8)), (3,4--3,8),
                   Yes (3,0--3,8), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--3,8))],
+                                    EqualsRange = None })], (3,0--3,8),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,8), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 07.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 07.fs.bsl
index 0089a35011a..c3afef69e09 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 07.fs.bsl	
@@ -14,8 +14,8 @@ ImplFile
                   ArbitraryAfterError ("localBinding2", (3,8--3,8)), (3,4--3,8),
                   Yes (3,0--3,8), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--3,8));
-           Expr (Const (Unit, (5,0--5,2)), (5,0--5,2))],
+                                    EqualsRange = None })], (3,0--3,8),
+              { InKeyword = None }); Expr (Const (Unit, (5,0--5,2)), (5,0--5,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 09.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 09.fs.bsl
index 77bb6b74bf2..2bb67e78eeb 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 09.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   ArbitraryAfterError ("localBinding2", (3,8--3,8)), (3,4--3,8),
                   Yes (3,0--3,8), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--3,8));
+                                    EqualsRange = None })], (3,0--3,8),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -26,7 +27,7 @@ ImplFile
                   Yes (5,0--5,10), { LeadingKeyword = Let (5,0--5,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (5,6--5,7) })],
-              (5,0--5,10))],
+              (5,0--5,10), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,10), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 10.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 10.fs.bsl
index be2e28d3469..534660f1dd9 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 10.fs.bsl	
@@ -16,7 +16,7 @@ ImplFile
                   Yes (3,0--3,16), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,12--3,13) })],
-              (3,0--3,16))],
+              (3,0--3,16), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,16), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/As 11.fs.bsl b/tests/service/data/SyntaxTree/Pattern/As 11.fs.bsl
index a7fd1764123..a515c35c0c8 100644
--- a/tests/service/data/SyntaxTree/Pattern/As 11.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/As 11.fs.bsl	
@@ -19,7 +19,8 @@ ImplFile
                   Const (Unit, (3,15--3,17)), (3,4--3,12), Yes (3,0--3,17),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,13--3,14) })], (3,0--3,17))],
+                    EqualsRange = Some (3,13--3,14) })], (3,0--3,17),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,17), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/InHeadPattern.fs.bsl b/tests/service/data/SyntaxTree/Pattern/InHeadPattern.fs.bsl
index 8ef79374ffa..b051e774443 100644
--- a/tests/service/data/SyntaxTree/Pattern/InHeadPattern.fs.bsl
+++ b/tests/service/data/SyntaxTree/Pattern/InHeadPattern.fs.bsl
@@ -26,8 +26,9 @@ ImplFile
                   (2,4--2,10), Yes (2,0--2,24),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,11--2,12) })], (2,0--2,24))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,11--2,12) })], (2,0--2,24),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Pattern/OperatorInSynPatLongIdent.fs.bsl b/tests/service/data/SyntaxTree/Pattern/OperatorInSynPatLongIdent.fs.bsl
index 31b3ea1510c..ef6ff484d63 100644
--- a/tests/service/data/SyntaxTree/Pattern/OperatorInSynPatLongIdent.fs.bsl
+++ b/tests/service/data/SyntaxTree/Pattern/OperatorInSynPatLongIdent.fs.bsl
@@ -29,8 +29,9 @@ ImplFile
                   (2,4--2,16), Yes (2,0--2,28),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,17--2,18) })], (2,0--2,28))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,17--2,18) })], (2,0--2,28),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 01.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 01.fs.bsl
index 13e9f682663..0cb659b4921 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 01.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   Const (Unit, (3,12--3,14)), (3,4--3,9), Yes (3,0--3,14),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,10--3,11) })], (3,0--3,14));
+                    EqualsRange = Some (3,10--3,11) })], (3,0--3,14),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -38,7 +39,8 @@ ImplFile
                   None, Const (Unit, (4,14--4,16)), (4,4--4,11), Yes (4,0--4,16),
                   { LeadingKeyword = Let (4,0--4,3)
                     InlineKeyword = None
-                    EqualsRange = Some (4,12--4,13) })], (4,0--4,16))],
+                    EqualsRange = Some (4,12--4,13) })], (4,0--4,16),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,16), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 02.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 02.fs.bsl
index 6ec6d695f22..f2ea77c92b7 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - HeadPat 02.fs.bsl	
@@ -23,7 +23,7 @@ ImplFile
                   Yes (3,0--3,18), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,14--3,15) })],
-              (3,0--3,18))],
+              (3,0--3,18), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,18), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 01.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 01.fs.bsl
index cb624d87691..27fbcf69530 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 01.fs.bsl	
@@ -18,7 +18,8 @@ ImplFile
                   ArbitraryAfterError ("localBinding2", (5,0--5,0)), (3,4--5,0),
                   Yes (3,0--5,0), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--5,0))],
+                                    EqualsRange = None })], (3,0--5,0),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,0), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 02.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 02.fs.bsl
index 517795c13dd..12a43f5fd10 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 02.fs.bsl	
@@ -19,7 +19,8 @@ ImplFile
                   ArbitraryAfterError ("localBinding2", (4,0--4,0)), (3,4--4,0),
                   Yes (3,0--4,0), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--4,0))],
+                                    EqualsRange = None })], (3,0--4,0),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,0), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 03.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 03.fs.bsl
index c3a138387cb..a1f149d8123 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 03.fs.bsl	
@@ -23,7 +23,7 @@ ImplFile
                   Yes (3,0--3,26), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,22--3,23) })],
-              (3,0--3,26));
+              (3,0--3,26), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -43,7 +43,8 @@ ImplFile
                   None, Const (Unit, (4,23--4,25)), (4,4--4,20), Yes (4,0--4,25),
                   { LeadingKeyword = Let (4,0--4,3)
                     InlineKeyword = None
-                    EqualsRange = Some (4,21--4,22) })], (4,0--4,25))],
+                    EqualsRange = Some (4,21--4,22) })], (4,0--4,25),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,25), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 04.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 04.fs.bsl
index 6931a6e0e33..b007d9c1707 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - Recover 04.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   Const (Unit, (3,11--3,13)), (3,4--3,8), Yes (3,0--3,13),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,9--3,10) })], (3,0--3,13));
+                    EqualsRange = Some (3,9--3,10) })], (3,0--3,13),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -37,7 +38,7 @@ ImplFile
                   Yes (5,0--5,13), { LeadingKeyword = Let (5,0--5,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (5,9--5,10) })],
-              (5,0--5,13));
+              (5,0--5,13), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -51,7 +52,7 @@ ImplFile
                   Yes (7,0--7,10), { LeadingKeyword = Let (7,0--7,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (7,6--7,7) })],
-              (7,0--7,10))],
+              (7,0--7,10), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,10), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Tuple - Struct 01.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Tuple - Struct 01.fs.bsl
index 8a3c5863004..d44ffcb6c11 100644
--- a/tests/service/data/SyntaxTree/Pattern/Tuple - Struct 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Tuple - Struct 01.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   None, Const (Unit, (3,23--3,25)), (3,4--3,20), Yes (3,0--3,25),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,21--3,22) })], (3,0--3,25))],
+                    EqualsRange = Some (3,21--3,22) })], (3,0--3,25),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,25), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 01.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 01.fs.bsl
index 47a126930af..5176b76edc7 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 01.fs.bsl	
@@ -21,7 +21,8 @@ ImplFile
                      FromParseError (3,6--3,6), (3,6--3,6)), (3,4--3,5),
                   Yes (3,0--3,6), { LeadingKeyword = Let (3,0--3,3)
                                     InlineKeyword = None
-                                    EqualsRange = None })], (3,0--3,6))],
+                                    EqualsRange = None })], (3,0--3,6),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,6), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 02.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 02.fs.bsl
index ead5a85c1af..95de5772930 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 02.fs.bsl	
@@ -21,8 +21,8 @@ ImplFile
                      (3,9--3,10)), (3,4--3,5), Yes (3,0--3,10),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,7--3,8) })], (3,0--3,10));
-           Expr (Const (Unit, (5,0--5,2)), (5,0--5,2))],
+                    EqualsRange = Some (3,7--3,8) })], (3,0--3,10),
+              { InKeyword = None }); Expr (Const (Unit, (5,0--5,2)), (5,0--5,2))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,2), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 03.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 03.fs.bsl
index 303709dc7fd..b45ff05fb58 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 03.fs.bsl	
@@ -22,7 +22,8 @@ ImplFile
                   Const (Unit, (3,18--3,20)), (3,4--3,15), Yes (3,0--3,20),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,16--3,17) })], (3,0--3,20))],
+                    EqualsRange = Some (3,16--3,17) })], (3,0--3,20),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,20), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 04.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 04.fs.bsl
index d6aa47ae861..70d6d301fbd 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 04.fs.bsl	
@@ -20,7 +20,8 @@ ImplFile
                   Const (Unit, (3,16--3,18)), (3,4--3,13), Yes (3,0--3,18),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,14--3,15) })], (3,0--3,18))],
+                    EqualsRange = Some (3,14--3,15) })], (3,0--3,18),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,18), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 05.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 05.fs.bsl
index c3c1bd37e9f..b7e8ca64ff7 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 05.fs.bsl	
@@ -8,31 +8,31 @@ ImplFile
              (Do
                 (FromParseError
                    (LetOrUse
-                      (false, false, true, false,
-                       [SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named (SynIdent (i, None), false, None, (4,8--4,9)),
-                           Some
-                             (SynBindingReturnInfo
-                                (FromParseError (4,10--4,10), (4,10--4,10), [],
-                                 { ColonRange = Some (4,9--4,10) })),
-                           Typed
-                             (ArbitraryAfterError
-                                ("localBinding2", (4,10--4,10)),
-                              FromParseError (4,10--4,10), (4,10--4,10)),
-                           (4,8--4,9), Yes (4,4--4,10),
-                           { LeadingKeyword = Let (4,4--4,7)
-                             InlineKeyword = None
-                             EqualsRange = None })],
-                       ArbitraryAfterError ("seqExpr", (4,10--4,10)),
-                       (4,4--4,10), { LetOrUseKeyword = (4,4--4,7)
-                                      InKeyword = None
-                                      EqualsRange = None }), (4,4--4,10)),
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named (SynIdent (i, None), false, None, (4,8--4,9)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (FromParseError (4,10--4,10), (4,10--4,10), [],
+                                   { ColonRange = Some (4,9--4,10) })),
+                             Typed
+                               (ArbitraryAfterError
+                                  ("localBinding2", (4,10--4,10)),
+                                FromParseError (4,10--4,10), (4,10--4,10)),
+                             (4,8--4,9), Yes (4,4--4,10),
+                             { LeadingKeyword = Let (4,4--4,7)
+                               InlineKeyword = None
+                               EqualsRange = None })]
+                        Body = ArbitraryAfterError ("seqExpr", (4,10--4,10))
+                        Range = (4,4--4,10)
+                        Trivia = { InKeyword = None } }, (4,4--4,10)),
                  (3,0--4,10)), (3,0--4,10))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,10), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 06.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 06.fs.bsl
index a38de74e7fe..f692e5c6d19 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 06.fs.bsl	
@@ -7,30 +7,29 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Named (SynIdent (i, None), false, None, (4,8--4,9)),
-                        Some
-                          (SynBindingReturnInfo
-                             (FromParseError (4,10--4,10), (4,10--4,10), [],
-                              { ColonRange = Some (4,9--4,10) })),
-                        Typed
-                          (Const (Int32 1, (4,13--4,14)),
-                           FromParseError (4,10--4,10), (4,13--4,14)),
-                        (4,8--4,9), Yes (4,4--4,14),
-                        { LeadingKeyword = Let (4,4--4,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (4,11--4,12) })],
-                    Const (Unit, (6,4--6,6)), (4,4--6,6),
-                    { LetOrUseKeyword = (4,4--4,7)
-                      InKeyword = None
-                      EqualsRange = Some (4,11--4,12) }), (3,0--6,6)),
-              (3,0--6,6))],
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Named (SynIdent (i, None), false, None, (4,8--4,9)),
+                          Some
+                            (SynBindingReturnInfo
+                               (FromParseError (4,10--4,10), (4,10--4,10), [],
+                                { ColonRange = Some (4,9--4,10) })),
+                          Typed
+                            (Const (Int32 1, (4,13--4,14)),
+                             FromParseError (4,10--4,10), (4,13--4,14)),
+                          (4,8--4,9), Yes (4,4--4,14),
+                          { LeadingKeyword = Let (4,4--4,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (4,11--4,12) })]
+                     Body = Const (Unit, (6,4--6,6))
+                     Range = (4,4--6,6)
+                     Trivia = { InKeyword = None } }, (3,0--6,6)), (3,0--6,6))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,6), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 09.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 09.fs.bsl
index cf91e9d594c..c9c5d4e25e4 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 09.fs.bsl	
@@ -7,27 +7,28 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Paren
-                          (Typed
-                             (Named
-                                (SynIdent (i, None), false, None, (4,9--4,10)),
-                              FromParseError (4,11--4,11), (4,9--4,11)),
-                           (4,8--4,12)), None,
-                        ArbitraryAfterError ("localBinding2", (4,12--4,12)),
-                        (4,8--4,12), Yes (4,4--4,12),
-                        { LeadingKeyword = Let (4,4--4,7)
-                          InlineKeyword = None
-                          EqualsRange = None })], Const (Unit, (6,4--6,6)),
-                    (4,4--6,6), { LetOrUseKeyword = (4,4--4,7)
-                                  InKeyword = None
-                                  EqualsRange = None }), (3,0--6,6)), (3,0--6,6))],
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Paren
+                            (Typed
+                               (Named
+                                  (SynIdent (i, None), false, None, (4,9--4,10)),
+                                FromParseError (4,11--4,11), (4,9--4,11)),
+                             (4,8--4,12)), None,
+                          ArbitraryAfterError ("localBinding2", (4,12--4,12)),
+                          (4,8--4,12), Yes (4,4--4,12),
+                          { LeadingKeyword = Let (4,4--4,7)
+                            InlineKeyword = None
+                            EqualsRange = None })]
+                     Body = Const (Unit, (6,4--6,6))
+                     Range = (4,4--6,6)
+                     Trivia = { InKeyword = None } }, (3,0--6,6)), (3,0--6,6))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,6), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 10.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 10.fs.bsl
index d76007a4819..6bab807b4d1 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 10.fs.bsl	
@@ -7,28 +7,27 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Paren
-                          (Typed
-                             (Named
-                                (SynIdent (i, None), false, None, (4,9--4,10)),
-                              FromParseError (4,11--4,11), (4,9--4,11)),
-                           (4,8--4,12)), None, Const (Int32 1, (4,15--4,16)),
-                        (4,8--4,12), Yes (4,4--4,16),
-                        { LeadingKeyword = Let (4,4--4,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (4,13--4,14) })],
-                    Const (Unit, (6,4--6,6)), (4,4--6,6),
-                    { LetOrUseKeyword = (4,4--4,7)
-                      InKeyword = None
-                      EqualsRange = Some (4,13--4,14) }), (3,0--6,6)),
-              (3,0--6,6))],
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                             None),
+                          Paren
+                            (Typed
+                               (Named
+                                  (SynIdent (i, None), false, None, (4,9--4,10)),
+                                FromParseError (4,11--4,11), (4,9--4,11)),
+                             (4,8--4,12)), None, Const (Int32 1, (4,15--4,16)),
+                          (4,8--4,12), Yes (4,4--4,16),
+                          { LeadingKeyword = Let (4,4--4,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (4,13--4,14) })]
+                     Body = Const (Unit, (6,4--6,6))
+                     Range = (4,4--6,6)
+                     Trivia = { InKeyword = None } }, (3,0--6,6)), (3,0--6,6))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,6), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 11.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 11.fs.bsl
index 1afdab1ec2f..2f2093c9aec 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 11.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 11.fs.bsl	
@@ -7,34 +7,33 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None,
-                           SynValInfo
-                             ([[SynArgInfo ([], false, Some i)]],
-                              SynArgInfo ([], false, None)), None),
-                        LongIdent
-                          (SynLongIdent ([f], [], [None]), None, None,
-                           Pats
-                             [Paren
-                                (Typed
-                                   (Named
-                                      (SynIdent (i, None), false, None,
-                                       (4,11--4,12)),
-                                    FromParseError (4,13--4,13), (4,11--4,13)),
-                                 (4,10--4,14))], None, (4,8--4,14)), None,
-                        Const (Int32 1, (4,17--4,18)), (4,8--4,14), NoneAtLet,
-                        { LeadingKeyword = Let (4,4--4,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (4,15--4,16) })],
-                    Const (Unit, (6,4--6,6)), (4,4--6,6),
-                    { LetOrUseKeyword = (4,4--4,7)
-                      InKeyword = None
-                      EqualsRange = Some (4,15--4,16) }), (3,0--6,6)),
-              (3,0--6,6))],
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None,
+                             SynValInfo
+                               ([[SynArgInfo ([], false, Some i)]],
+                                SynArgInfo ([], false, None)), None),
+                          LongIdent
+                            (SynLongIdent ([f], [], [None]), None, None,
+                             Pats
+                               [Paren
+                                  (Typed
+                                     (Named
+                                        (SynIdent (i, None), false, None,
+                                         (4,11--4,12)),
+                                      FromParseError (4,13--4,13), (4,11--4,13)),
+                                   (4,10--4,14))], None, (4,8--4,14)), None,
+                          Const (Int32 1, (4,17--4,18)), (4,8--4,14), NoneAtLet,
+                          { LeadingKeyword = Let (4,4--4,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (4,15--4,16) })]
+                     Body = Const (Unit, (6,4--6,6))
+                     Range = (4,4--6,6)
+                     Trivia = { InKeyword = None } }, (3,0--6,6)), (3,0--6,6))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,6), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 12.fs.bsl b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 12.fs.bsl
index 1fc723d7ea0..34ae7a0389e 100644
--- a/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 12.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Pattern/Typed - Missing type 12.fs.bsl	
@@ -7,42 +7,41 @@ ImplFile
           [Expr
              (Do
                 (LetOrUse
-                   (false, false, true, false,
-                    [SynBinding
-                       (None, Normal, false, false, [],
-                        PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                        SynValData
-                          (None,
-                           SynValInfo
-                             ([[SynArgInfo ([], false, Some i);
-                                SynArgInfo ([], false, Some j)]],
-                              SynArgInfo ([], false, None)), None),
-                        LongIdent
-                          (SynLongIdent ([f], [], [None]), None, None,
-                           Pats
-                             [Paren
-                                (Tuple
-                                   (false,
-                                    [Typed
-                                       (Named
-                                          (SynIdent (i, None), false, None,
-                                           (4,11--4,12)),
-                                        FromParseError (4,13--4,13),
-                                        (4,11--4,13));
-                                     Named
-                                       (SynIdent (j, None), false, None,
-                                        (4,15--4,16))], [(4,13--4,14)],
-                                    (4,11--4,16)), (4,10--4,17))], None,
-                           (4,8--4,17)), None, Const (Int32 1, (4,20--4,21)),
-                        (4,8--4,17), NoneAtLet,
-                        { LeadingKeyword = Let (4,4--4,7)
-                          InlineKeyword = None
-                          EqualsRange = Some (4,18--4,19) })],
-                    Const (Unit, (6,4--6,6)), (4,4--6,6),
-                    { LetOrUseKeyword = (4,4--4,7)
-                      InKeyword = None
-                      EqualsRange = Some (4,18--4,19) }), (3,0--6,6)),
-              (3,0--6,6))],
+                   { IsRecursive = false
+                     Bindings =
+                      [SynBinding
+                         (None, Normal, false, false, [],
+                          PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                          SynValData
+                            (None,
+                             SynValInfo
+                               ([[SynArgInfo ([], false, Some i);
+                                  SynArgInfo ([], false, Some j)]],
+                                SynArgInfo ([], false, None)), None),
+                          LongIdent
+                            (SynLongIdent ([f], [], [None]), None, None,
+                             Pats
+                               [Paren
+                                  (Tuple
+                                     (false,
+                                      [Typed
+                                         (Named
+                                            (SynIdent (i, None), false, None,
+                                             (4,11--4,12)),
+                                          FromParseError (4,13--4,13),
+                                          (4,11--4,13));
+                                       Named
+                                         (SynIdent (j, None), false, None,
+                                          (4,15--4,16))], [(4,13--4,14)],
+                                      (4,11--4,16)), (4,10--4,17))], None,
+                             (4,8--4,17)), None, Const (Int32 1, (4,20--4,21)),
+                          (4,8--4,17), NoneAtLet,
+                          { LeadingKeyword = Let (4,4--4,7)
+                            InlineKeyword = None
+                            EqualsRange = Some (4,18--4,19) })]
+                     Body = Const (Unit, (6,4--6,6))
+                     Range = (4,4--6,6)
+                     Trivia = { InKeyword = None } }, (3,0--6,6)), (3,0--6,6))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,6), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SimplePats/SimplePats - Recover 01.fs.bsl b/tests/service/data/SyntaxTree/SimplePats/SimplePats - Recover 01.fs.bsl
index 9b7cc02ee66..ae49f2a942e 100644
--- a/tests/service/data/SyntaxTree/SimplePats/SimplePats - Recover 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SimplePats/SimplePats - Recover 01.fs.bsl	
@@ -40,7 +40,8 @@ ImplFile
                      { ArrowRange = Some (3,22--3,24) }), (3,4--3,5), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--3,26));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--3,26),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -76,7 +77,8 @@ ImplFile
                      { ArrowRange = Some (4,19--4,21) }), (4,4--4,5), NoneAtLet,
                   { LeadingKeyword = Let (4,0--4,3)
                     InlineKeyword = None
-                    EqualsRange = Some (4,6--4,7) })], (4,0--4,24));
+                    EqualsRange = Some (4,6--4,7) })], (4,0--4,24),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -168,7 +170,8 @@ ImplFile
                      { ArrowRange = Some (5,41--5,43) }), (5,4--5,5), NoneAtLet,
                   { LeadingKeyword = Let (5,0--5,3)
                     InlineKeyword = None
-                    EqualsRange = Some (5,6--5,7) })], (5,0--5,46));
+                    EqualsRange = Some (5,6--5,7) })], (5,0--5,46),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -198,7 +201,8 @@ ImplFile
                      { ArrowRange = Some (6,22--6,24) }), (6,4--6,10), NoneAtLet,
                   { LeadingKeyword = Let (6,0--6,3)
                     InlineKeyword = None
-                    EqualsRange = Some (6,11--6,12) })], (6,0--6,27))],
+                    EqualsRange = Some (6,11--6,12) })], (6,0--6,27),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,27), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SimplePats/SimplePats 01.fs.bsl b/tests/service/data/SyntaxTree/SimplePats/SimplePats 01.fs.bsl
index 22d60a66606..217b23ee8e3 100644
--- a/tests/service/data/SyntaxTree/SimplePats/SimplePats 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SimplePats/SimplePats 01.fs.bsl	
@@ -33,7 +33,7 @@ ImplFile
                   (3,4--3,5), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                            InlineKeyword = None
                                            EqualsRange = Some (3,6--3,7) })],
-              (3,0--3,25));
+              (3,0--3,25), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -66,7 +66,8 @@ ImplFile
                      { ArrowRange = Some (4,18--4,20) }), (4,4--4,5), NoneAtLet,
                   { LeadingKeyword = Let (4,0--4,3)
                     InlineKeyword = None
-                    EqualsRange = Some (4,6--4,7) })], (4,0--4,23));
+                    EqualsRange = Some (4,6--4,7) })], (4,0--4,23),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -155,7 +156,8 @@ ImplFile
                      { ArrowRange = Some (5,40--5,42) }), (5,4--5,5), NoneAtLet,
                   { LeadingKeyword = Let (5,0--5,3)
                     InlineKeyword = None
-                    EqualsRange = Some (5,6--5,7) })], (5,0--5,45));
+                    EqualsRange = Some (5,6--5,7) })], (5,0--5,45),
+              { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -178,7 +180,7 @@ ImplFile
                   (6,4--6,10), NoneAtLet, { LeadingKeyword = Let (6,0--6,3)
                                             InlineKeyword = None
                                             EqualsRange = Some (6,11--6,12) })],
-              (6,0--6,24));
+              (6,0--6,24), { InKeyword = None });
            Let
              (false,
               [SynBinding
@@ -196,7 +198,8 @@ ImplFile
                      { ArrowRange = Some (7,19--7,21) }), (7,4--7,9), NoneAtLet,
                   { LeadingKeyword = Let (7,0--7,3)
                     InlineKeyword = None
-                    EqualsRange = Some (7,10--7,11) })], (7,0--7,24))],
+                    EqualsRange = Some (7,10--7,11) })], (7,0--7,24),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,24), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInModule.fs.bsl b/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInModule.fs.bsl
index c042884e24f..d7fb308c07b 100644
--- a/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInModule.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInModule.fs.bsl
@@ -26,10 +26,11 @@ ImplFile
                       (2,8--2,9), Yes (2,4--4,4),
                       { LeadingKeyword = Let (2,4--2,7)
                         InlineKeyword = None
-                        EqualsRange = Some (2,10--2,11) })], (2,4--4,4))], false,
-              (1,0--4,4), { ModuleKeyword = Some (1,0--1,6)
-                            EqualsRange = Some (1,9--1,10) })], PreXmlDocEmpty,
-          [], None, (1,0--4,4), { LeadingKeyword = None })], (true, true),
+                        EqualsRange = Some (2,10--2,11) })], (2,4--4,4),
+                  { InKeyword = None })], false, (1,0--4,4),
+              { ModuleKeyword = Some (1,0--1,6)
+                EqualsRange = Some (1,9--1,10) })], PreXmlDocEmpty, [], None,
+          (1,0--4,4), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInNestedLet.fs.bsl b/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInNestedLet.fs.bsl
index 5de04dee2f6..2ebbea5d2af 100644
--- a/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInNestedLet.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/InterpolatedStringOffsideInNestedLet.fs.bsl
@@ -13,31 +13,33 @@ ImplFile
                     (None, SynValInfo ([], SynArgInfo ([], false, None)), None),
                   Named (SynIdent (a, None), false, None, (1,4--1,5)), None,
                   LetOrUse
-                    (false, false, true, false,
-                     [SynBinding
-                        (None, Normal, false, false, [],
-                         PreXmlDoc ((2,4), FSharp.Compiler.Xml.XmlDocCollector),
-                         SynValData
-                           (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                            None),
-                         Named (SynIdent (b, None), false, None, (2,8--2,9)),
-                         None,
-                         InterpolatedString
-                           ([String ("
+                    { IsRecursive = false
+                      Bindings =
+                       [SynBinding
+                          (None, Normal, false, false, [],
+                           PreXmlDoc ((2,4), FSharp.Compiler.Xml.XmlDocCollector),
+                           SynValData
+                             (None,
+                              SynValInfo ([], SynArgInfo ([], false, None)),
+                              None),
+                           Named (SynIdent (b, None), false, None, (2,8--2,9)),
+                           None,
+                           InterpolatedString
+                             ([String ("
 ", (3,8--4,1));
-                             FillExpr (Const (Int32 0, (4,1--4,2)), None);
-                             String ("", (4,2--4,4))], Regular, (3,8--4,4)),
-                         (2,8--2,9), Yes (2,4--4,4),
-                         { LeadingKeyword = Let (2,4--2,7)
-                           InlineKeyword = None
-                           EqualsRange = Some (2,10--2,11) })], Ident b,
-                     (2,4--5,5), { LetOrUseKeyword = (2,4--2,7)
-                                   InKeyword = None
-                                   EqualsRange = Some (2,10--2,11) }),
-                  (1,4--1,5), NoneAtLet, { LeadingKeyword = Let (1,0--1,3)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (1,6--1,7) })],
-              (1,0--5,5))], PreXmlDocEmpty, [], None, (1,0--5,5),
+                               FillExpr (Const (Int32 0, (4,1--4,2)), None);
+                               String ("", (4,2--4,4))], Regular, (3,8--4,4)),
+                           (2,8--2,9), Yes (2,4--4,4),
+                           { LeadingKeyword = Let (2,4--2,7)
+                             InlineKeyword = None
+                             EqualsRange = Some (2,10--2,11) })]
+                      Body = Ident b
+                      Range = (2,4--5,5)
+                      Trivia = { InKeyword = None } }, (1,4--1,5), NoneAtLet,
+                  { LeadingKeyword = Let (1,0--1,3)
+                    InlineKeyword = None
+                    EqualsRange = Some (1,6--1,7) })], (1,0--5,5),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (1,0--5,5),
           { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
diff --git a/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindRegular.fs.bsl b/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindRegular.fs.bsl
index 9e98e92eb3b..d75deb2559f 100644
--- a/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindRegular.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindRegular.fs.bsl
@@ -17,8 +17,9 @@ ImplFile
                      (2,12--2,17)), (2,4--2,9), Yes (2,0--2,17),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,10--2,11) })], (2,0--2,17))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,10--2,11) })], (2,0--2,17),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindVerbatim.fs.bsl b/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindVerbatim.fs.bsl
index d6108dd914e..3558453d510 100644
--- a/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindVerbatim.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynConstBytesWithSynByteStringKindVerbatim.fs.bsl
@@ -17,8 +17,9 @@ ImplFile
                      (2,12--2,18)), (2,4--2,9), Yes (2,0--2,18),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,10--2,11) })], (2,0--2,18))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,10--2,11) })], (2,0--2,18),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindRegular.fs.bsl b/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindRegular.fs.bsl
index fca6ec7f61f..d7e456fbf21 100644
--- a/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindRegular.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindRegular.fs.bsl
@@ -16,8 +16,8 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,12), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,12))], PreXmlDocEmpty, [], None, (2,0--3,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,12), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--3,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindTripleQuote.fs.bsl b/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindTripleQuote.fs.bsl
index c78c9cbfd83..a6367f49c08 100644
--- a/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindTripleQuote.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindTripleQuote.fs.bsl
@@ -16,8 +16,8 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,16), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,16))], PreXmlDocEmpty, [], None, (2,0--3,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,16), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--3,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindVerbatim.fs.bsl b/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindVerbatim.fs.bsl
index 48535a0d130..3ac4b59d559 100644
--- a/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindVerbatim.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynConstStringWithSynStringKindVerbatim.fs.bsl
@@ -16,8 +16,8 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,13), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,13))], PreXmlDocEmpty, [], None, (2,0--3,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,13), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--3,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindRegular.fs.bsl b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindRegular.fs.bsl
index 70937d3b1a7..7026b9a1034 100644
--- a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindRegular.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindRegular.fs.bsl
@@ -19,8 +19,8 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,18), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,18))], PreXmlDocEmpty, [], None, (2,0--3,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,18), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--3,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindTripleQuote.fs.bsl b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindTripleQuote.fs.bsl
index 4810ae97d20..9e42b6455ce 100644
--- a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindTripleQuote.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindTripleQuote.fs.bsl
@@ -22,8 +22,8 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,22), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,22))], PreXmlDocEmpty, [], None, (2,0--3,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,22), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--3,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindVerbatim.fs.bsl b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindVerbatim.fs.bsl
index 1be7aa3c720..2fb03900ebf 100644
--- a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindVerbatim.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithSynStringKindVerbatim.fs.bsl
@@ -22,8 +22,9 @@ ImplFile
                      Verbatim, (2,8--2,70)), (2,4--2,5), Yes (2,0--2,70),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,6--2,7) })], (2,0--2,70))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,6--2,7) })], (2,0--2,70),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithTripleQuoteMultipleDollars.fs.bsl b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithTripleQuoteMultipleDollars.fs.bsl
index 69aaf6b57a2..3bbd9b2ba46 100644
--- a/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithTripleQuoteMultipleDollars.fs.bsl
+++ b/tests/service/data/SyntaxTree/String/SynExprInterpolatedStringWithTripleQuoteMultipleDollars.fs.bsl
@@ -24,8 +24,8 @@ ImplFile
                   (2,4--2,5), Yes (2,0--2,43), { LeadingKeyword = Let (2,0--2,3)
                                                  InlineKeyword = None
                                                  EqualsRange = Some (2,6--2,7) })],
-              (2,0--2,43))], PreXmlDocEmpty, [], None, (2,0--2,43),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--2,43), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--2,43), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/SynType/Constraint intersection 01.fs.bsl b/tests/service/data/SyntaxTree/SynType/Constraint intersection 01.fs.bsl
index 406f8286369..8a6042c2154 100644
--- a/tests/service/data/SyntaxTree/SynType/Constraint intersection 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Constraint intersection 01.fs.bsl	
@@ -51,7 +51,8 @@ ImplFile
                   Const (Unit, (3,44--3,46)), (3,4--3,41), NoneAtLet,
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,42--3,43) })], (3,0--3,46))],
+                    EqualsRange = Some (3,42--3,43) })], (3,0--3,46),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,46), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Constraint intersection 02.fs.bsl b/tests/service/data/SyntaxTree/SynType/Constraint intersection 02.fs.bsl
index 84ad6fcff41..0e4752a029c 100644
--- a/tests/service/data/SyntaxTree/SynType/Constraint intersection 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Constraint intersection 02.fs.bsl	
@@ -49,7 +49,7 @@ ImplFile
                   (3,4--3,51), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                             InlineKeyword = None
                                             EqualsRange = Some (3,52--3,53) })],
-              (3,0--3,56))],
+              (3,0--3,56), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,56), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Fun 06.fs.bsl b/tests/service/data/SyntaxTree/SynType/Fun 06.fs.bsl
index d9cb647dde9..50abe743907 100644
--- a/tests/service/data/SyntaxTree/SynType/Fun 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Fun 06.fs.bsl	
@@ -27,7 +27,7 @@ ImplFile
                   Yes (3,0--3,18), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,14--3,15) })],
-              (3,0--3,18))],
+              (3,0--3,18), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,18), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Fun 07.fs.bsl b/tests/service/data/SyntaxTree/SynType/Fun 07.fs.bsl
index fb62b6e501f..4fc31d631a2 100644
--- a/tests/service/data/SyntaxTree/SynType/Fun 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Fun 07.fs.bsl	
@@ -33,7 +33,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,23),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,19--3,20) })], (3,0--3,23))],
+                    EqualsRange = Some (3,19--3,20) })], (3,0--3,23),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,23), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Fun 08.fs.bsl b/tests/service/data/SyntaxTree/SynType/Fun 08.fs.bsl
index 0abcf541d5c..95e92f5742d 100644
--- a/tests/service/data/SyntaxTree/SynType/Fun 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Fun 08.fs.bsl	
@@ -27,7 +27,7 @@ ImplFile
                   Yes (3,0--3,16), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,12--3,13) })],
-              (3,0--3,16))],
+              (3,0--3,16), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,16), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Fun 09.fs.bsl b/tests/service/data/SyntaxTree/SynType/Fun 09.fs.bsl
index 3dff98415d7..f614261b25e 100644
--- a/tests/service/data/SyntaxTree/SynType/Fun 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Fun 09.fs.bsl	
@@ -33,7 +33,7 @@ ImplFile
                   Yes (3,0--3,21), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,17--3,18) })],
-              (3,0--3,21))],
+              (3,0--3,21), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,21), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Fun 10.fs.bsl b/tests/service/data/SyntaxTree/SynType/Fun 10.fs.bsl
index b3cda4839cc..23e45ccfb0e 100644
--- a/tests/service/data/SyntaxTree/SynType/Fun 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Fun 10.fs.bsl	
@@ -27,7 +27,7 @@ ImplFile
                   Yes (3,0--3,21), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,17--3,18) })],
-              (3,0--3,21))],
+              (3,0--3,21), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,21), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 01.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 01.fs.bsl
index 0d39ab9c888..339d2f752f1 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 01.fs.bsl	
@@ -14,7 +14,8 @@ ImplFile
                   Const (Int32 42, (3,12--3,14)), (3,4--3,9), Yes (3,0--3,14),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,10--3,11) })], (3,0--3,14))],
+                    EqualsRange = Some (3,10--3,11) })], (3,0--3,14),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,14), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 02.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 02.fs.bsl
index b81f6b1f3f9..2b4929aac83 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 02.fs.bsl	
@@ -16,7 +16,8 @@ ImplFile
                   (3,4--3,17), Yes (3,0--3,22),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,18--3,19) })], (3,0--3,22))],
+                    EqualsRange = Some (3,18--3,19) })], (3,0--3,22),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,22), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 03.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 03.fs.bsl
index d28f17a263d..b9d6d634d3e 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 03.fs.bsl	
@@ -17,7 +17,8 @@ ImplFile
                   Const (Int32 0, (3,12--3,13)), (3,4--3,9), Yes (3,0--3,13),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,10--3,11) })], (3,0--3,13))],
+                    EqualsRange = Some (3,10--3,11) })], (3,0--3,13),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,13), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 04.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 04.fs.bsl
index 38104718dfb..1068e4fb7d7 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 04.fs.bsl	
@@ -17,7 +17,8 @@ ImplFile
                   Const (Int32 0, (3,20--3,21)), (3,4--3,17), Yes (3,0--3,21),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,18--3,19) })], (3,0--3,21))],
+                    EqualsRange = Some (3,18--3,19) })], (3,0--3,21),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,21), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 05.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 05.fs.bsl
index 828b8de599c..8580f0b85bd 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 05.fs.bsl	
@@ -23,7 +23,8 @@ ImplFile
                      (3,19--3,23)), (3,4--3,16), Yes (3,0--3,23),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,17--3,18) })], (3,0--3,23))],
+                    EqualsRange = Some (3,17--3,18) })], (3,0--3,23),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,23), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 06.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 06.fs.bsl
index c2a24350cd2..03c78e8a372 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 06.fs.bsl	
@@ -25,7 +25,8 @@ ImplFile
                      (3,27--3,31)), (3,4--3,24), Yes (3,0--3,31),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,25--3,26) })], (3,0--3,31))],
+                    EqualsRange = Some (3,25--3,26) })], (3,0--3,31),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,31), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 07.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 07.fs.bsl
index 45d7be65073..3b0a866c6e3 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 07.fs.bsl	
@@ -24,7 +24,8 @@ ImplFile
                      (3,19--3,23)), (3,4--3,16), Yes (3,0--3,23),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,17--3,18) })], (3,0--3,23))],
+                    EqualsRange = Some (3,17--3,18) })], (3,0--3,23),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,23), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Named 08.fs.bsl b/tests/service/data/SyntaxTree/SynType/Named 08.fs.bsl
index c235cb210ba..578b9d8611a 100644
--- a/tests/service/data/SyntaxTree/SynType/Named 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Named 08.fs.bsl	
@@ -18,7 +18,8 @@ ImplFile
                   Const (Int32 0, (3,21--3,22)), (3,4--3,18), Yes (3,0--3,22),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,19--3,20) })], (3,0--3,22))],
+                    EqualsRange = Some (3,19--3,20) })], (3,0--3,22),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,22), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/NestedSynTypeOrInsideSynExprTraitCall.fs.bsl b/tests/service/data/SyntaxTree/SynType/NestedSynTypeOrInsideSynExprTraitCall.fs.bsl
index 1f03d7f33ac..0519b1b2187 100644
--- a/tests/service/data/SyntaxTree/SynType/NestedSynTypeOrInsideSynExprTraitCall.fs.bsl
+++ b/tests/service/data/SyntaxTree/SynType/NestedSynTypeOrInsideSynExprTraitCall.fs.bsl
@@ -99,8 +99,9 @@ ImplFile
                      (2,36--2,100)), (2,11--2,28), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = Some (2,4--2,10)
-                    EqualsRange = Some (2,34--2,35) })], (2,0--2,100))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,34--2,35) })], (2,0--2,100),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynExprTraitCall.fs.bsl b/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynExprTraitCall.fs.bsl
index ea2f15e0487..de6b23fb759 100644
--- a/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynExprTraitCall.fs.bsl
+++ b/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynExprTraitCall.fs.bsl
@@ -76,8 +76,9 @@ ImplFile
                      (2,31--2,84)), (2,11--2,23), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = Some (2,4--2,10)
-                    EqualsRange = Some (2,29--2,30) })], (2,0--2,84))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,29--2,30) })], (2,0--2,84),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynTypeConstraintWhereTyparSupportsMember.fs.bsl b/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynTypeConstraintWhereTyparSupportsMember.fs.bsl
index 31f3fe5e4c6..fe5574fc5fc 100644
--- a/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynTypeConstraintWhereTyparSupportsMember.fs.bsl
+++ b/tests/service/data/SyntaxTree/SynType/SynTypeOrInsideSynTypeConstraintWhereTyparSupportsMember.fs.bsl
@@ -83,8 +83,8 @@ ImplFile
                   (2,11--2,99), NoneAtLet, { LeadingKeyword = Let (2,0--2,3)
                                              InlineKeyword = Some (2,4--2,10)
                                              EqualsRange = Some (2,106--2,107) })],
-              (2,0--3,6))], PreXmlDocEmpty, [], None, (2,0--4,0),
-          { LeadingKeyword = None })], (true, true),
+              (2,0--3,6), { InKeyword = None })], PreXmlDocEmpty, [], None,
+          (2,0--4,0), { LeadingKeyword = None })], (true, true),
       { ConditionalDirectives = []
         WarnDirectives = []
         CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/SynType/SynTypeOrWithAppTypeOnTheRightHandSide.fs.bsl b/tests/service/data/SyntaxTree/SynType/SynTypeOrWithAppTypeOnTheRightHandSide.fs.bsl
index 3a17a731f00..5e112be7de8 100644
--- a/tests/service/data/SyntaxTree/SynType/SynTypeOrWithAppTypeOnTheRightHandSide.fs.bsl
+++ b/tests/service/data/SyntaxTree/SynType/SynTypeOrWithAppTypeOnTheRightHandSide.fs.bsl
@@ -57,8 +57,9 @@ ImplFile
                      Some (2,63--2,64), (2,23--2,64)), (2,11--2,20), NoneAtLet,
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = Some (2,4--2,10)
-                    EqualsRange = Some (2,21--2,22) })], (2,0--2,64))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,21--2,22) })], (2,0--2,64),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 09.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 09.fs.bsl
index 65df0ba18f4..2cd43c2a80f 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 09.fs.bsl	
@@ -35,7 +35,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,20),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,16--3,17) })], (3,0--3,20))],
+                    EqualsRange = Some (3,16--3,17) })], (3,0--3,20),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,20), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 10.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 10.fs.bsl
index d38b3e89d5f..e20f6953acb 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 10.fs.bsl	
@@ -35,7 +35,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,20),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,16--3,17) })], (3,0--3,20))],
+                    EqualsRange = Some (3,16--3,17) })], (3,0--3,20),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,20), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 11.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 11.fs.bsl
index ed9a34731d9..0e7cfeefa79 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 11.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 11.fs.bsl	
@@ -41,7 +41,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,26),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,22--3,23) })], (3,0--3,26))],
+                    EqualsRange = Some (3,22--3,23) })], (3,0--3,26),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,26), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 12.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 12.fs.bsl
index aab9c322a38..9c5fbb82e8c 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 12.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 12.fs.bsl	
@@ -41,7 +41,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,26),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,22--3,23) })], (3,0--3,26))],
+                    EqualsRange = Some (3,22--3,23) })], (3,0--3,26),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,26), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 13.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 13.fs.bsl
index c0d6e8ddce2..880a353a2ca 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 13.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 13.fs.bsl	
@@ -43,7 +43,7 @@ ImplFile
                   Yes (3,0--3,26), { LeadingKeyword = Let (3,0--3,3)
                                      InlineKeyword = None
                                      EqualsRange = Some (3,22--3,23) })],
-              (3,0--3,26))],
+              (3,0--3,26), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,26), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 14.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 14.fs.bsl
index 6a54173ea3e..60d847334a4 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 14.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 14.fs.bsl	
@@ -43,7 +43,8 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,26),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,22--3,23) })], (3,0--3,26))],
+                    EqualsRange = Some (3,22--3,23) })], (3,0--3,26),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,26), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Tuple 15.fs.bsl b/tests/service/data/SyntaxTree/SynType/Tuple 15.fs.bsl
index 44d8624017b..c84fea78a8b 100644
--- a/tests/service/data/SyntaxTree/SynType/Tuple 15.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Tuple 15.fs.bsl	
@@ -21,7 +21,7 @@ ImplFile
                   (3,4--3,5), Yes (3,0--3,10), { LeadingKeyword = Let (3,0--3,3)
                                                  InlineKeyword = None
                                                  EqualsRange = None })],
-              (3,0--3,10))],
+              (3,0--3,10), { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,10), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 01.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 01.fs.bsl
index b901dac5465..650107ddcbf 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 01.fs.bsl	
@@ -9,39 +9,42 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (res, None), false, None, (4,9--4,12)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,14--4,17), [],
-                                 { ColonRange = Some (4,12--4,13) })),
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,35--4,36)),
-                                    (4,28--4,36),
-                                    { YieldOrReturnKeyword = (4,28--4,34) }),
-                                 (4,26--4,38)), (4,20--4,38)), (4,4--4,38),
-                           Yes (4,4--4,38), { LeadingKeyword = Let (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,18--4,19) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (5,4--5,14),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (4,4--5,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,18--4,19) }), (3,6--6,1)),
-                 (3,0--6,1)), (3,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (res, None), false, None, (4,9--4,12)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,14--4,17), [],
+                                   { ColonRange = Some (4,12--4,13) })),
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,35--4,36)),
+                                      (4,28--4,36),
+                                      { YieldOrReturnKeyword = (4,28--4,34) }),
+                                   (4,26--4,38)), (4,20--4,38)), (4,4--4,38),
+                             Yes (4,4--4,38),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,18--4,19) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (5,4--5,14),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (4,4--5,14)
+                        Trivia = { InKeyword = None } }, (3,6--6,1)), (3,0--6,1)),
+              (3,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 02.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 02.fs.bsl
index 610fcf01e27..0411be79a84 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 02.fs.bsl	
@@ -9,39 +9,42 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Named
-                                   (SynIdent (res, None), false, None,
-                                    (4,10--4,13)),
-                                 LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,10--4,18)), (4,9--4,19)), None,
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,37--4,38)),
-                                    (4,30--4,38),
-                                    { YieldOrReturnKeyword = (4,30--4,36) }),
-                                 (4,28--4,40)), (4,22--4,40)), (4,4--4,40),
-                           Yes (4,4--4,40), { LeadingKeyword = Let (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,20--4,21) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (5,4--5,14),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (4,4--5,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,20--4,21) }), (3,6--6,1)),
-                 (3,0--6,1)), (3,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Named
+                                     (SynIdent (res, None), false, None,
+                                      (4,10--4,13)),
+                                   LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,10--4,18)), (4,9--4,19)), None,
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,37--4,38)),
+                                      (4,30--4,38),
+                                      { YieldOrReturnKeyword = (4,30--4,36) }),
+                                   (4,28--4,40)), (4,22--4,40)), (4,4--4,40),
+                             Yes (4,4--4,40),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,20--4,21) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (5,4--5,14),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (4,4--5,14)
+                        Trivia = { InKeyword = None } }, (3,6--6,1)), (3,0--6,1)),
+              (3,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 03.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 03.fs.bsl
index 7e78bdb436f..22dfbda651a 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 03.fs.bsl	
@@ -9,129 +9,132 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, false,
-                       [SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Tuple
-                                (false,
-                                 [Typed
-                                    (Named
-                                       (SynIdent (a, None), false, None,
-                                        (4,9--4,10)),
-                                     LongIdent
-                                       (SynLongIdent ([int], [], [None])),
-                                     (4,9--4,15));
-                                  Typed
-                                    (Named
-                                       (SynIdent (b, None), false, None,
-                                        (4,17--4,18)),
-                                     LongIdent
-                                       (SynLongIdent ([int], [], [None])),
-                                     (4,17--4,23))], [(4,15--4,16)], (4,9--4,23)),
-                              (4,8--4,24)), None,
-                           Tuple
-                             (false,
-                              [Const (Int32 1, (4,27--4,28));
-                               Const (Int32 3, (4,30--4,31))], [(4,28--4,29)],
-                              (4,27--4,31)), (4,8--4,24), Yes (4,4--4,31),
-                           { LeadingKeyword = Let (4,4--4,7)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,25--4,26) })],
-                       LetOrUse
-                         (false, false, true, true,
-                          [SynBinding
-                             (None, Normal, false, false, [], PreXmlDocEmpty,
-                              SynValData
-                                (None,
-                                 SynValInfo ([], SynArgInfo ([], false, None)),
-                                 None),
-                              Paren
-                                (Tuple
-                                   (false,
-                                    [Typed
-                                       (Named
-                                          (SynIdent (c, None), false, None,
-                                           (5,10--5,11)),
-                                        LongIdent
-                                          (SynLongIdent ([int], [], [None])),
-                                        (5,10--5,16));
-                                     Typed
-                                       (Named
-                                          (SynIdent (d, None), false, None,
-                                           (5,18--5,19)),
-                                        LongIdent
-                                          (SynLongIdent ([int], [], [None])),
-                                        (5,18--5,24))], [(5,16--5,17)],
-                                    (5,10--5,24)), (5,9--5,25)), None,
-                              App
-                                (NonAtomic, false, Ident async,
-                                 ComputationExpr
-                                   (false,
-                                    YieldOrReturn
-                                      ((false, true),
-                                       Tuple
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Tuple
+                                  (false,
+                                   [Typed
+                                      (Named
+                                         (SynIdent (a, None), false, None,
+                                          (4,9--4,10)),
+                                       LongIdent
+                                         (SynLongIdent ([int], [], [None])),
+                                       (4,9--4,15));
+                                    Typed
+                                      (Named
+                                         (SynIdent (b, None), false, None,
+                                          (4,17--4,18)),
+                                       LongIdent
+                                         (SynLongIdent ([int], [], [None])),
+                                       (4,17--4,23))], [(4,15--4,16)],
+                                   (4,9--4,23)), (4,8--4,24)), None,
+                             Tuple
+                               (false,
+                                [Const (Int32 1, (4,27--4,28));
+                                 Const (Int32 3, (4,30--4,31))], [(4,28--4,29)],
+                                (4,27--4,31)), (4,8--4,24), Yes (4,4--4,31),
+                             { LeadingKeyword = Let (4,4--4,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,25--4,26) })]
+                        Body =
+                         LetOrUse
+                           { IsRecursive = false
+                             Bindings =
+                              [SynBinding
+                                 (None, Normal, false, false, [], PreXmlDocEmpty,
+                                  SynValData
+                                    (None,
+                                     SynValInfo
+                                       ([], SynArgInfo ([], false, None)), None),
+                                  Paren
+                                    (Tuple
+                                       (false,
+                                        [Typed
+                                           (Named
+                                              (SynIdent (c, None), false, None,
+                                               (5,10--5,11)),
+                                            LongIdent
+                                              (SynLongIdent ([int], [], [None])),
+                                            (5,10--5,16));
+                                         Typed
+                                           (Named
+                                              (SynIdent (d, None), false, None,
+                                               (5,18--5,19)),
+                                            LongIdent
+                                              (SynLongIdent ([int], [], [None])),
+                                            (5,18--5,24))], [(5,16--5,17)],
+                                        (5,10--5,24)), (5,9--5,25)), None,
+                                  App
+                                    (NonAtomic, false, Ident async,
+                                     ComputationExpr
+                                       (false,
+                                        YieldOrReturn
+                                          ((false, true),
+                                           Tuple
+                                             (false,
+                                              [Const (Int32 1, (5,43--5,44));
+                                               Const (Int32 3, (5,46--5,47))],
+                                              [(5,44--5,45)], (5,43--5,47)),
+                                           (5,36--5,47),
+                                           { YieldOrReturnKeyword = (5,36--5,42) }),
+                                        (5,34--5,49)), (5,28--5,49)),
+                                  (5,4--5,49), Yes (5,4--5,49),
+                                  { LeadingKeyword = LetBang (5,4--5,8)
+                                    InlineKeyword = None
+                                    EqualsRange = Some (5,26--5,27) })]
+                             Body =
+                              YieldOrReturn
+                                ((false, true),
+                                 App
+                                   (NonAtomic, false,
+                                    App
+                                      (NonAtomic, true,
+                                       LongIdent
                                          (false,
-                                          [Const (Int32 1, (5,43--5,44));
-                                           Const (Int32 3, (5,46--5,47))],
-                                          [(5,44--5,45)], (5,43--5,47)),
-                                       (5,36--5,47),
-                                       { YieldOrReturnKeyword = (5,36--5,42) }),
-                                    (5,34--5,49)), (5,28--5,49)), (5,4--5,49),
-                              Yes (5,4--5,49),
-                              { LeadingKeyword = Let (5,4--5,8)
-                                InlineKeyword = None
-                                EqualsRange = Some (5,26--5,27) })],
-                          YieldOrReturn
-                            ((false, true),
-                             App
-                               (NonAtomic, false,
-                                App
-                                  (NonAtomic, true,
-                                   LongIdent
-                                     (false,
-                                      SynLongIdent
-                                        ([op_Addition], [],
-                                         [Some (OriginalNotation "+")]), None,
-                                      (6,21--6,22)),
-                                   App
-                                     (NonAtomic, false,
-                                      App
-                                        (NonAtomic, true,
-                                         LongIdent
-                                           (false,
-                                            SynLongIdent
-                                              ([op_Addition], [],
-                                               [Some (OriginalNotation "+")]),
-                                            None, (6,17--6,18)),
-                                         App
-                                           (NonAtomic, false,
-                                            App
-                                              (NonAtomic, true,
-                                               LongIdent
-                                                 (false,
-                                                  SynLongIdent
-                                                    ([op_Addition], [],
-                                                     [Some
-                                                        (OriginalNotation "+")]),
-                                                  None, (6,13--6,14)), Ident a,
-                                               (6,11--6,14)), Ident b,
-                                            (6,11--6,16)), (6,11--6,18)),
-                                      Ident c, (6,11--6,20)), (6,11--6,22)),
-                                Ident d, (6,11--6,24)), (6,4--6,24),
-                             { YieldOrReturnKeyword = (6,4--6,10) }),
-                          (5,4--6,24), { LetOrUseKeyword = (5,4--5,8)
-                                         InKeyword = None
-                                         EqualsRange = Some (5,26--5,27) }),
-                       (4,4--6,24), { LetOrUseKeyword = (4,4--4,7)
-                                      InKeyword = None
-                                      EqualsRange = Some (4,25--4,26) }),
-                    (3,6--7,1)), (3,0--7,1)), (3,0--7,1))],
+                                          SynLongIdent
+                                            ([op_Addition], [],
+                                             [Some (OriginalNotation "+")]),
+                                          None, (6,21--6,22)),
+                                       App
+                                         (NonAtomic, false,
+                                          App
+                                            (NonAtomic, true,
+                                             LongIdent
+                                               (false,
+                                                SynLongIdent
+                                                  ([op_Addition], [],
+                                                   [Some (OriginalNotation "+")]),
+                                                None, (6,17--6,18)),
+                                             App
+                                               (NonAtomic, false,
+                                                App
+                                                  (NonAtomic, true,
+                                                   LongIdent
+                                                     (false,
+                                                      SynLongIdent
+                                                        ([op_Addition], [],
+                                                         [Some
+                                                            (OriginalNotation
+                                                               "+")]), None,
+                                                      (6,13--6,14)), Ident a,
+                                                   (6,11--6,14)), Ident b,
+                                                (6,11--6,16)), (6,11--6,18)),
+                                          Ident c, (6,11--6,20)), (6,11--6,22)),
+                                    Ident d, (6,11--6,24)), (6,4--6,24),
+                                 { YieldOrReturnKeyword = (6,4--6,10) })
+                             Range = (5,4--6,24)
+                             Trivia = { InKeyword = None } }
+                        Range = (4,4--6,24)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 04.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 04.fs.bsl
index cf228ae258e..c20e6e5f6a5 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 04.fs.bsl	
@@ -11,34 +11,35 @@ ImplFile
                     Tuple
                       (false,
                        [LetOrUse
-                          (false, false, true, false,
-                           [SynBinding
-                              (None, Normal, false, false, [],
-                               PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                               SynValData
-                                 (None,
-                                  SynValInfo ([], SynArgInfo ([], false, None)),
-                                  None),
-                               Named
-                                 (SynIdent (a, None), false, None, (4,8--4,9)),
-                               Some
-                                 (SynBindingReturnInfo
-                                    (LongIdent
-                                       (SynLongIdent ([int], [], [None])),
-                                     (4,11--4,14), [],
-                                     { ColonRange = Some (4,9--4,10) })),
-                               Typed
-                                 (ArbitraryAfterError
-                                    ("localBinding2", (4,14--4,14)),
-                                  LongIdent (SynLongIdent ([int], [], [None])),
-                                  (4,14--4,14)), (4,8--4,9), Yes (4,4--4,14),
-                               { LeadingKeyword = Let (4,4--4,7)
-                                 InlineKeyword = None
-                                 EqualsRange = None })],
-                           ArbitraryAfterError ("declExpr3", (5,15--5,16)),
-                           (4,4--5,16), { LetOrUseKeyword = (4,4--4,7)
-                                          InKeyword = None
-                                          EqualsRange = None }); Ident d],
+                          { IsRecursive = false
+                            Bindings =
+                             [SynBinding
+                                (None, Normal, false, false, [],
+                                 PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                                 SynValData
+                                   (None,
+                                    SynValInfo
+                                      ([], SynArgInfo ([], false, None)), None),
+                                 Named
+                                   (SynIdent (a, None), false, None, (4,8--4,9)),
+                                 Some
+                                   (SynBindingReturnInfo
+                                      (LongIdent
+                                         (SynLongIdent ([int], [], [None])),
+                                       (4,11--4,14), [],
+                                       { ColonRange = Some (4,9--4,10) })),
+                                 Typed
+                                   (ArbitraryAfterError
+                                      ("localBinding2", (4,14--4,14)),
+                                    LongIdent (SynLongIdent ([int], [], [None])),
+                                    (4,14--4,14)), (4,8--4,9), Yes (4,4--4,14),
+                                 { LeadingKeyword = Let (4,4--4,7)
+                                   InlineKeyword = None
+                                   EqualsRange = None })]
+                            Body =
+                             ArbitraryAfterError ("declExpr3", (5,15--5,16))
+                            Range = (4,4--5,16)
+                            Trivia = { InKeyword = None } }; Ident d],
                        [(5,15--5,16)], (4,4--5,18)), (3,6--5,47)), (3,0--5,47)),
               (3,0--5,47))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 05.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 05.fs.bsl
index c25638c937b..6077e675f0a 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 05.fs.bsl	
@@ -5,61 +5,64 @@ ImplFile
          ([Module], false, NamedModule,
           [Expr
              (LetOrUse
-                (false, false, true, true,
-                 [SynBinding
-                    (None, Normal, false, false, [], PreXmlDocEmpty,
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None),
-                     Named (SynIdent (x, None), false, None, (2,5--2,6)),
-                     Some
-                       (SynBindingReturnInfo
-                          (LongIdent (SynLongIdent ([int], [], [None])),
-                           (2,7--2,10), [], { ColonRange = Some (2,6--2,7) })),
-                     App
-                       (NonAtomic, false, Ident async,
-                        ComputationExpr
-                          (false,
-                           YieldOrReturn
-                             ((false, true), Const (Int32 1, (2,28--2,29)),
-                              (2,21--2,29),
-                              { YieldOrReturnKeyword = (2,21--2,27) }),
-                           (2,19--2,31)), (2,13--2,31)), (2,0--2,31),
-                     Yes (2,0--2,31), { LeadingKeyword = Let (2,0--2,4)
-                                        InlineKeyword = None
-                                        EqualsRange = Some (2,11--2,12) })],
-                 LetOrUse
-                   (false, false, true, true,
-                    [SynBinding
-                       (None, Normal, false, false, [], PreXmlDocEmpty,
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Paren
-                          (Typed
-                             (Named
-                                (SynIdent (y, None), false, None, (3,6--3,7)),
-                              LongIdent (SynLongIdent ([int], [], [None])),
-                              (3,6--3,11)), (3,5--3,12)), None,
-                        App
-                          (NonAtomic, false, Ident async,
-                           ComputationExpr
-                             (false,
-                              YieldOrReturn
-                                ((false, true), Const (Int32 2, (3,30--3,31)),
-                                 (3,23--3,31),
-                                 { YieldOrReturnKeyword = (3,23--3,29) }),
-                              (3,21--3,33)), (3,15--3,33)), (3,0--3,33),
-                        Yes (3,0--3,33), { LeadingKeyword = Let (3,0--3,4)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (3,13--3,14) })],
-                    ImplicitZero (3,33--3,33), (3,0--3,33),
-                    { LetOrUseKeyword = (3,0--3,4)
-                      InKeyword = None
-                      EqualsRange = Some (3,13--3,14) }), (2,0--3,33),
-                 { LetOrUseKeyword = (2,0--2,4)
-                   InKeyword = None
-                   EqualsRange = Some (2,11--2,12) }), (2,0--3,33))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [], PreXmlDocEmpty,
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None),
+                       Named (SynIdent (x, None), false, None, (2,5--2,6)),
+                       Some
+                         (SynBindingReturnInfo
+                            (LongIdent (SynLongIdent ([int], [], [None])),
+                             (2,7--2,10), [], { ColonRange = Some (2,6--2,7) })),
+                       App
+                         (NonAtomic, false, Ident async,
+                          ComputationExpr
+                            (false,
+                             YieldOrReturn
+                               ((false, true), Const (Int32 1, (2,28--2,29)),
+                                (2,21--2,29),
+                                { YieldOrReturnKeyword = (2,21--2,27) }),
+                             (2,19--2,31)), (2,13--2,31)), (2,0--2,31),
+                       Yes (2,0--2,31), { LeadingKeyword = LetBang (2,0--2,4)
+                                          InlineKeyword = None
+                                          EqualsRange = Some (2,11--2,12) })]
+                  Body =
+                   LetOrUse
+                     { IsRecursive = false
+                       Bindings =
+                        [SynBinding
+                           (None, Normal, false, false, [], PreXmlDocEmpty,
+                            SynValData
+                              (None,
+                               SynValInfo ([], SynArgInfo ([], false, None)),
+                               None),
+                            Paren
+                              (Typed
+                                 (Named
+                                    (SynIdent (y, None), false, None, (3,6--3,7)),
+                                  LongIdent (SynLongIdent ([int], [], [None])),
+                                  (3,6--3,11)), (3,5--3,12)), None,
+                            App
+                              (NonAtomic, false, Ident async,
+                               ComputationExpr
+                                 (false,
+                                  YieldOrReturn
+                                    ((false, true),
+                                     Const (Int32 2, (3,30--3,31)), (3,23--3,31),
+                                     { YieldOrReturnKeyword = (3,23--3,29) }),
+                                  (3,21--3,33)), (3,15--3,33)), (3,0--3,33),
+                            Yes (3,0--3,33),
+                            { LeadingKeyword = LetBang (3,0--3,4)
+                              InlineKeyword = None
+                              EqualsRange = Some (3,13--3,14) })]
+                       Body = ImplicitZero (3,33--3,33)
+                       Range = (3,0--3,33)
+                       Trivia = { InKeyword = None } }
+                  Range = (2,0--3,33)
+                  Trivia = { InKeyword = None } }, (2,0--3,33))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,33), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 06.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 06.fs.bsl
index 78a44c56d3a..5fdb8c60c7e 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 06.fs.bsl	
@@ -5,59 +5,62 @@ ImplFile
          ([Module], false, NamedModule,
           [Expr
              (LetOrUse
-                (false, false, true, true,
-                 [SynBinding
-                    (None, Normal, false, false, [], PreXmlDocEmpty,
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None), Wild (2,5--2,6),
-                     Some
-                       (SynBindingReturnInfo
-                          (LongIdent (SynLongIdent ([int], [], [None])),
-                           (2,7--2,10), [], { ColonRange = Some (2,6--2,7) })),
-                     App
-                       (NonAtomic, false, Ident async,
-                        ComputationExpr
-                          (false,
-                           YieldOrReturn
-                             ((false, true), Const (Int32 1, (2,28--2,29)),
-                              (2,21--2,29),
-                              { YieldOrReturnKeyword = (2,21--2,27) }),
-                           (2,19--2,31)), (2,13--2,31)), (2,0--2,31),
-                     Yes (2,0--2,31), { LeadingKeyword = Let (2,0--2,4)
-                                        InlineKeyword = None
-                                        EqualsRange = Some (2,11--2,12) })],
-                 LetOrUse
-                   (false, false, true, true,
-                    [SynBinding
-                       (None, Normal, false, false, [], PreXmlDocEmpty,
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Paren
-                          (Typed
-                             (Wild (3,6--3,7),
-                              LongIdent (SynLongIdent ([int], [], [None])),
-                              (3,6--3,11)), (3,5--3,12)), None,
-                        App
-                          (NonAtomic, false, Ident async,
-                           ComputationExpr
-                             (false,
-                              YieldOrReturn
-                                ((false, true), Const (Int32 2, (3,30--3,31)),
-                                 (3,23--3,31),
-                                 { YieldOrReturnKeyword = (3,23--3,29) }),
-                              (3,21--3,33)), (3,15--3,33)), (3,0--3,33),
-                        Yes (3,0--3,33), { LeadingKeyword = Let (3,0--3,4)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (3,13--3,14) })],
-                    ImplicitZero (3,33--3,33), (3,0--3,33),
-                    { LetOrUseKeyword = (3,0--3,4)
-                      InKeyword = None
-                      EqualsRange = Some (3,13--3,14) }), (2,0--3,33),
-                 { LetOrUseKeyword = (2,0--2,4)
-                   InKeyword = None
-                   EqualsRange = Some (2,11--2,12) }), (2,0--3,33))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [], PreXmlDocEmpty,
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None), Wild (2,5--2,6),
+                       Some
+                         (SynBindingReturnInfo
+                            (LongIdent (SynLongIdent ([int], [], [None])),
+                             (2,7--2,10), [], { ColonRange = Some (2,6--2,7) })),
+                       App
+                         (NonAtomic, false, Ident async,
+                          ComputationExpr
+                            (false,
+                             YieldOrReturn
+                               ((false, true), Const (Int32 1, (2,28--2,29)),
+                                (2,21--2,29),
+                                { YieldOrReturnKeyword = (2,21--2,27) }),
+                             (2,19--2,31)), (2,13--2,31)), (2,0--2,31),
+                       Yes (2,0--2,31), { LeadingKeyword = LetBang (2,0--2,4)
+                                          InlineKeyword = None
+                                          EqualsRange = Some (2,11--2,12) })]
+                  Body =
+                   LetOrUse
+                     { IsRecursive = false
+                       Bindings =
+                        [SynBinding
+                           (None, Normal, false, false, [], PreXmlDocEmpty,
+                            SynValData
+                              (None,
+                               SynValInfo ([], SynArgInfo ([], false, None)),
+                               None),
+                            Paren
+                              (Typed
+                                 (Wild (3,6--3,7),
+                                  LongIdent (SynLongIdent ([int], [], [None])),
+                                  (3,6--3,11)), (3,5--3,12)), None,
+                            App
+                              (NonAtomic, false, Ident async,
+                               ComputationExpr
+                                 (false,
+                                  YieldOrReturn
+                                    ((false, true),
+                                     Const (Int32 2, (3,30--3,31)), (3,23--3,31),
+                                     { YieldOrReturnKeyword = (3,23--3,29) }),
+                                  (3,21--3,33)), (3,15--3,33)), (3,0--3,33),
+                            Yes (3,0--3,33),
+                            { LeadingKeyword = LetBang (3,0--3,4)
+                              InlineKeyword = None
+                              EqualsRange = Some (3,13--3,14) })]
+                       Body = ImplicitZero (3,33--3,33)
+                       Range = (3,0--3,33)
+                       Trivia = { InKeyword = None } }
+                  Range = (2,0--3,33)
+                  Trivia = { InKeyword = None } }, (2,0--3,33))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--3,33), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 07.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 07.fs.bsl
index 429cc096f4f..c0c99a54dfb 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 07.fs.bsl	
@@ -9,38 +9,40 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Record
-                                   ([NamePatPairField
-                                       (SynLongIdent ([Name], [], [None]),
-                                        Some (3,17--3,18), (3,12--3,23),
-                                        Named
-                                          (SynIdent (name, None), false, None,
-                                           (3,19--3,23)), None)], (3,10--3,25)),
-                                 LongIdent (SynLongIdent ([Person], [], [None])),
-                                 (3,10--3,33)), (3,9--3,34)), None,
-                           App
-                             (Atomic, false, Ident asyncPerson,
-                              Const (Unit, (3,48--3,50)), (3,37--3,50)),
-                           (3,4--3,50), Yes (3,4--3,50),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,35--3,36) })],
-                       YieldOrReturn
-                         ((false, true), Ident name, (5,4--5,15),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (3,4--5,15),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,35--3,36) }), (2,6--7,1)),
-                 (2,0--7,1)), (2,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Record
+                                     ([NamePatPairField
+                                         (SynLongIdent ([Name], [], [None]),
+                                          Some (3,17--3,18), (3,12--3,23),
+                                          Named
+                                            (SynIdent (name, None), false, None,
+                                             (3,19--3,23)), None)], (3,10--3,25)),
+                                   LongIdent
+                                     (SynLongIdent ([Person], [], [None])),
+                                   (3,10--3,33)), (3,9--3,34)), None,
+                             App
+                               (Atomic, false, Ident asyncPerson,
+                                Const (Unit, (3,48--3,50)), (3,37--3,50)),
+                             (3,4--3,50), Yes (3,4--3,50),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,35--3,36) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident name, (5,4--5,15),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (3,4--5,15)
+                        Trivia = { InKeyword = None } }, (2,6--7,1)), (2,0--7,1)),
+              (2,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 08.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 08.fs.bsl
index a8e603e6eaf..48c8b1f8d40 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 08.fs.bsl	
@@ -9,39 +9,41 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Record
-                             ([NamePatPairField
-                                 (SynLongIdent ([Name], [], [None]),
-                                  Some (3,16--3,17), (3,11--3,22),
-                                  Named
-                                    (SynIdent (name, None), false, None,
-                                     (3,18--3,22)), None)], (3,9--3,24)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([Person], [], [None])),
-                                 (3,26--3,32), [],
-                                 { ColonRange = Some (3,24--3,25) })),
-                           App
-                             (Atomic, false, Ident asyncPerson,
-                              Const (Unit, (3,46--3,48)), (3,35--3,48)),
-                           (3,4--3,48), Yes (3,4--3,48),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,33--3,34) })],
-                       YieldOrReturn
-                         ((false, true), Ident name, (4,4--4,15),
-                          { YieldOrReturnKeyword = (4,4--4,10) }), (3,4--4,15),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,33--3,34) }), (2,6--6,1)),
-                 (2,0--6,1)), (2,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Record
+                               ([NamePatPairField
+                                   (SynLongIdent ([Name], [], [None]),
+                                    Some (3,16--3,17), (3,11--3,22),
+                                    Named
+                                      (SynIdent (name, None), false, None,
+                                       (3,18--3,22)), None)], (3,9--3,24)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent
+                                     (SynLongIdent ([Person], [], [None])),
+                                   (3,26--3,32), [],
+                                   { ColonRange = Some (3,24--3,25) })),
+                             App
+                               (Atomic, false, Ident asyncPerson,
+                                Const (Unit, (3,46--3,48)), (3,35--3,48)),
+                             (3,4--3,48), Yes (3,4--3,48),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,33--3,34) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident name, (4,4--4,15),
+                            { YieldOrReturnKeyword = (4,4--4,10) })
+                        Range = (3,4--4,15)
+                        Trivia = { InKeyword = None } }, (2,6--6,1)), (2,0--6,1)),
+              (2,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 09.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 09.fs.bsl
index ab423155185..fb9c7691150 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 09.fs.bsl	
@@ -9,35 +9,37 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (LongIdent
-                                (SynLongIdent ([Union], [], [None]), None, None,
-                                 Pats
-                                   [Named
-                                      (SynIdent (value, None), false, None,
-                                       (3,16--3,21))], None, (3,10--3,21)),
-                              (3,9--3,22)), None,
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (3,36--3,38)), (3,25--3,38)),
-                           (3,4--3,38), Yes (3,4--3,38),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,23--3,24) })],
-                       YieldOrReturn
-                         ((false, true), Ident value, (4,4--4,16),
-                          { YieldOrReturnKeyword = (4,4--4,10) }), (3,4--4,16),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,23--3,24) }), (2,6--5,1)),
-                 (2,0--5,1)), (2,0--5,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (LongIdent
+                                  (SynLongIdent ([Union], [], [None]), None,
+                                   None,
+                                   Pats
+                                     [Named
+                                        (SynIdent (value, None), false, None,
+                                         (3,16--3,21))], None, (3,10--3,21)),
+                                (3,9--3,22)), None,
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (3,36--3,38)), (3,25--3,38)),
+                             (3,4--3,38), Yes (3,4--3,38),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,23--3,24) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident value, (4,4--4,16),
+                            { YieldOrReturnKeyword = (4,4--4,10) })
+                        Range = (3,4--4,16)
+                        Trivia = { InKeyword = None } }, (2,6--5,1)), (2,0--5,1)),
+              (2,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 10.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 10.fs.bsl
index 1952891784e..82aa1291840 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 10.fs.bsl	
@@ -9,33 +9,34 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           LongIdent
-                             (SynLongIdent ([Union], [], [None]), None, None,
-                              Pats
-                                [Named
-                                   (SynIdent (value, None), false, None,
-                                    (3,15--3,20))], None, (3,9--3,20)), None,
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (3,34--3,36)), (3,23--3,36)),
-                           (3,4--3,36), Yes (3,4--3,36),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,21--3,22) })],
-                       YieldOrReturn
-                         ((false, true), Ident value, (4,4--4,16),
-                          { YieldOrReturnKeyword = (4,4--4,10) }), (3,4--4,16),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,21--3,22) }), (2,6--5,1)),
-                 (2,0--5,1)), (2,0--5,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             LongIdent
+                               (SynLongIdent ([Union], [], [None]), None, None,
+                                Pats
+                                  [Named
+                                     (SynIdent (value, None), false, None,
+                                      (3,15--3,20))], None, (3,9--3,20)), None,
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (3,34--3,36)), (3,23--3,36)),
+                             (3,4--3,36), Yes (3,4--3,36),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,21--3,22) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident value, (4,4--4,16),
+                            { YieldOrReturnKeyword = (4,4--4,10) })
+                        Range = (3,4--4,16)
+                        Trivia = { InKeyword = None } }, (2,6--5,1)), (2,0--5,1)),
+              (2,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 11.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 11.fs.bsl
index 91620f8a19d..cf69227574f 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 11.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 11.fs.bsl	
@@ -9,45 +9,47 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (LongIdent
-                                (SynLongIdent ([Union], [], [None]), None, None,
-                                 Pats
-                                   [Named
-                                      (SynIdent (value, None), false, None,
-                                       (3,16--3,21))], None, (3,10--3,21)),
-                              (3,9--3,22)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([option], [], [None])),
-                                    None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (3,24--3,34)), (3,24--3,34), [],
-                                 { ColonRange = Some (3,22--3,23) })),
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (3,48--3,50)), (3,37--3,50)),
-                           (3,4--3,50), Yes (3,4--3,50),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,35--3,36) })],
-                       YieldOrReturn
-                         ((false, true), Ident value, (4,4--4,16),
-                          { YieldOrReturnKeyword = (4,4--4,10) }), (3,4--4,16),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,35--3,36) }), (2,6--5,1)),
-                 (2,0--5,1)), (2,0--5,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (LongIdent
+                                  (SynLongIdent ([Union], [], [None]), None,
+                                   None,
+                                   Pats
+                                     [Named
+                                        (SynIdent (value, None), false, None,
+                                         (3,16--3,21))], None, (3,10--3,21)),
+                                (3,9--3,22)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([option], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (3,24--3,34)), (3,24--3,34),
+                                   [], { ColonRange = Some (3,22--3,23) })),
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (3,48--3,50)), (3,37--3,50)),
+                             (3,4--3,50), Yes (3,4--3,50),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,35--3,36) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident value, (4,4--4,16),
+                            { YieldOrReturnKeyword = (4,4--4,10) })
+                        Range = (3,4--4,16)
+                        Trivia = { InKeyword = None } }, (2,6--5,1)), (2,0--5,1)),
+              (2,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 12.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 12.fs.bsl
index 19b59f7f1da..f2fbd90c903 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 12.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 12.fs.bsl	
@@ -9,43 +9,44 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           LongIdent
-                             (SynLongIdent ([Union], [], [None]), None, None,
-                              Pats
-                                [Named
-                                   (SynIdent (value, None), false, None,
-                                    (3,15--3,20))], None, (3,9--3,20)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([option], [], [None])),
-                                    None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (3,22--3,32)), (3,22--3,32), [],
-                                 { ColonRange = Some (3,20--3,21) })),
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (3,46--3,48)), (3,35--3,48)),
-                           (3,4--3,48), Yes (3,4--3,48),
-                           { LeadingKeyword = Let (3,4--3,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (3,33--3,34) })],
-                       YieldOrReturn
-                         ((false, true), Ident value, (4,4--4,16),
-                          { YieldOrReturnKeyword = (4,4--4,10) }), (3,4--4,16),
-                       { LetOrUseKeyword = (3,4--3,8)
-                         InKeyword = None
-                         EqualsRange = Some (3,33--3,34) }), (2,6--5,1)),
-                 (2,0--5,1)), (2,0--5,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             LongIdent
+                               (SynLongIdent ([Union], [], [None]), None, None,
+                                Pats
+                                  [Named
+                                     (SynIdent (value, None), false, None,
+                                      (3,15--3,20))], None, (3,9--3,20)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([option], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (3,22--3,32)), (3,22--3,32),
+                                   [], { ColonRange = Some (3,20--3,21) })),
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (3,46--3,48)), (3,35--3,48)),
+                             (3,4--3,48), Yes (3,4--3,48),
+                             { LeadingKeyword = LetBang (3,4--3,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (3,33--3,34) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident value, (4,4--4,16),
+                            { YieldOrReturnKeyword = (4,4--4,10) })
+                        Range = (3,4--4,16)
+                        Trivia = { InKeyword = None } }, (2,6--5,1)), (2,0--5,1)),
+              (2,0--5,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 14.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 14.fs.bsl
index 87485698a0d..0bce3a97d5a 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 14.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 14.fs.bsl	
@@ -9,76 +9,78 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (x, None), false, None,
-                                    (4,10--4,11)),
-                                 Named
-                                   (SynIdent (y, None), false, None,
-                                    (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (FromParseError (4,18--4,18), (4,18--4,18), [],
-                                 { ColonRange = Some (4,17--4,18) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,29--4,31)), (4,21--4,31)),
-                           (4,4--4,31), Yes (4,4--4,31),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,19--4,20) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (a, None), false, None,
-                                    (5,10--5,11)),
-                                 Named
-                                   (SynIdent (b, None), false, None,
-                                    (5,15--5,16)), (5,10--5,16)), (5,9--5,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([string], [], [None])),
-                                 (5,19--5,25), [],
-                                 { ColonRange = Some (5,17--5,18) })),
-                           App
-                             (Atomic, false, Ident asyncString,
-                              Const (Unit, (5,39--5,41)), (5,28--5,41)),
-                           (5,4--5,41), Yes (5,4--5,41),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,26--5,27) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (x, None), false, None,
+                                      (4,10--4,11)),
+                                   Named
+                                     (SynIdent (y, None), false, None,
+                                      (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (FromParseError (4,18--4,18), (4,18--4,18), [],
+                                   { ColonRange = Some (4,17--4,18) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,13--6,14)), Ident x, (6,11--6,14)),
-                             Ident b, (6,11--6,16)), (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,19--4,20) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,29--4,31)), (4,21--4,31)),
+                             (4,4--4,31), Yes (4,4--4,31),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,19--4,20) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (a, None), false, None,
+                                      (5,10--5,11)),
+                                   Named
+                                     (SynIdent (b, None), false, None,
+                                      (5,15--5,16)), (5,10--5,16)), (5,9--5,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent
+                                     (SynLongIdent ([string], [], [None])),
+                                   (5,19--5,25), [],
+                                   { ColonRange = Some (5,17--5,18) })),
+                             App
+                               (Atomic, false, Ident asyncString,
+                                Const (Unit, (5,39--5,41)), (5,28--5,41)),
+                             (5,4--5,41), Yes (5,4--5,41),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,26--5,27) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,13--6,14)), Ident x, (6,11--6,14)),
+                               Ident b, (6,11--6,16)), (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 15.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 15.fs.bsl
index e252e9d6393..f262515261c 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 15.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 15.fs.bsl	
@@ -9,50 +9,51 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (x, None), false, None,
-                                    (4,10--4,11)),
-                                 Named
-                                   (SynIdent (y, None), false, None,
-                                    (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (FromParseError (4,18--4,18), (4,18--4,18), [],
-                                 { ColonRange = Some (4,17--4,18) })),
-                           App
-                             (Atomic, false, Ident asyncString,
-                              Const (Unit, (5,39--5,41)), (5,28--5,41)),
-                           (4,4--5,41), Yes (4,4--5,41),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,26--5,27) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (x, None), false, None,
+                                      (4,10--4,11)),
+                                   Named
+                                     (SynIdent (y, None), false, None,
+                                      (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (FromParseError (4,18--4,18), (4,18--4,18), [],
+                                   { ColonRange = Some (4,17--4,18) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,13--6,14)), Ident x, (6,11--6,14)),
-                             Ident b, (6,11--6,16)), (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (5,26--5,27) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncString,
+                                Const (Unit, (5,39--5,41)), (5,28--5,41)),
+                             (4,4--5,41), Yes (4,4--5,41),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,26--5,27) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,13--6,14)), Ident x, (6,11--6,14)),
+                               Ident b, (6,11--6,16)), (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 17.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 17.fs.bsl
index b6adc9e3f2f..471ce05d432 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 17.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 17.fs.bsl	
@@ -23,42 +23,43 @@ ImplFile
                   Const (Int32 1, (3,23--3,24)), (3,4--3,20), Yes (3,0--3,24),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,21--3,22) })], (3,0--3,24));
+                    EqualsRange = Some (3,21--3,22) })], (3,0--3,24),
+              { InKeyword = None });
            Expr
              (LetOrUse
-                (false, false, true, true,
-                 [SynBinding
-                    (None, Normal, false, false, [], PreXmlDocEmpty,
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None),
-                     Paren
-                       (Typed
-                          (As
-                             (LongIdent
-                                (SynLongIdent ([Even], [], [None]), None, None,
-                                 Pats [], None, (5,6--5,10)),
-                              Named
-                                (SynIdent (x, None), false, None, (5,14--5,15)),
-                              (5,6--5,15)),
-                           LongIdent (SynLongIdent ([int], [], [None])),
-                           (5,6--5,20)), (5,5--5,21)), None,
-                     App
-                       (NonAtomic, false, Ident async,
-                        ComputationExpr
-                          (false,
-                           YieldOrReturn
-                             ((false, true), Const (Int32 2, (5,39--5,40)),
-                              (5,32--5,40),
-                              { YieldOrReturnKeyword = (5,32--5,38) }),
-                           (5,30--5,42)), (5,24--5,42)), (5,0--5,42),
-                     Yes (5,0--5,42), { LeadingKeyword = Let (5,0--5,4)
-                                        InlineKeyword = None
-                                        EqualsRange = Some (5,22--5,23) })],
-                 ImplicitZero (5,42--5,42), (5,0--5,42),
-                 { LetOrUseKeyword = (5,0--5,4)
-                   InKeyword = None
-                   EqualsRange = Some (5,22--5,23) }), (5,0--5,42))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [], PreXmlDocEmpty,
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None),
+                       Paren
+                         (Typed
+                            (As
+                               (LongIdent
+                                  (SynLongIdent ([Even], [], [None]), None, None,
+                                   Pats [], None, (5,6--5,10)),
+                                Named
+                                  (SynIdent (x, None), false, None, (5,14--5,15)),
+                                (5,6--5,15)),
+                             LongIdent (SynLongIdent ([int], [], [None])),
+                             (5,6--5,20)), (5,5--5,21)), None,
+                       App
+                         (NonAtomic, false, Ident async,
+                          ComputationExpr
+                            (false,
+                             YieldOrReturn
+                               ((false, true), Const (Int32 2, (5,39--5,40)),
+                                (5,32--5,40),
+                                { YieldOrReturnKeyword = (5,32--5,38) }),
+                             (5,30--5,42)), (5,24--5,42)), (5,0--5,42),
+                       Yes (5,0--5,42), { LeadingKeyword = LetBang (5,0--5,4)
+                                          InlineKeyword = None
+                                          EqualsRange = Some (5,22--5,23) })]
+                  Body = ImplicitZero (5,42--5,42)
+                  Range = (5,0--5,42)
+                  Trivia = { InKeyword = None } }, (5,0--5,42))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,42), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 18.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 18.fs.bsl
index 0b62badd88e..cb42eb3bdb5 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 18.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 18.fs.bsl	
@@ -26,41 +26,43 @@ ImplFile
                   (3,4--3,13), Yes (3,0--3,22),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,19--3,20) })], (3,0--3,22));
+                    EqualsRange = Some (3,19--3,20) })], (3,0--3,22),
+              { InKeyword = None });
            Expr
              (LetOrUse
-                (false, false, true, true,
-                 [SynBinding
-                    (None, Normal, false, false, [], PreXmlDocEmpty,
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None),
-                     As
-                       (LongIdent
-                          (SynLongIdent ([Even], [], [None]), None, None,
-                           Pats [], None, (5,5--5,9)),
-                        Named (SynIdent (x, None), false, None, (5,13--5,14)),
-                        (5,5--5,14)),
-                     Some
-                       (SynBindingReturnInfo
-                          (LongIdent (SynLongIdent ([int], [], [None])),
-                           (5,16--5,19), [], { ColonRange = Some (5,14--5,15) })),
-                     App
-                       (NonAtomic, false, Ident async,
-                        ComputationExpr
-                          (false,
-                           YieldOrReturn
-                             ((false, true), Const (Int32 2, (5,37--5,38)),
-                              (5,30--5,38),
-                              { YieldOrReturnKeyword = (5,30--5,36) }),
-                           (5,28--5,40)), (5,22--5,40)), (5,0--5,40),
-                     Yes (5,0--5,40), { LeadingKeyword = Let (5,0--5,4)
-                                        InlineKeyword = None
-                                        EqualsRange = Some (5,20--5,21) })],
-                 ImplicitZero (5,40--5,40), (5,0--5,40),
-                 { LetOrUseKeyword = (5,0--5,4)
-                   InKeyword = None
-                   EqualsRange = Some (5,20--5,21) }), (5,0--5,40))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [], PreXmlDocEmpty,
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None),
+                       As
+                         (LongIdent
+                            (SynLongIdent ([Even], [], [None]), None, None,
+                             Pats [], None, (5,5--5,9)),
+                          Named (SynIdent (x, None), false, None, (5,13--5,14)),
+                          (5,5--5,14)),
+                       Some
+                         (SynBindingReturnInfo
+                            (LongIdent (SynLongIdent ([int], [], [None])),
+                             (5,16--5,19), [],
+                             { ColonRange = Some (5,14--5,15) })),
+                       App
+                         (NonAtomic, false, Ident async,
+                          ComputationExpr
+                            (false,
+                             YieldOrReturn
+                               ((false, true), Const (Int32 2, (5,37--5,38)),
+                                (5,30--5,38),
+                                { YieldOrReturnKeyword = (5,30--5,36) }),
+                             (5,28--5,40)), (5,22--5,40)), (5,0--5,40),
+                       Yes (5,0--5,40), { LeadingKeyword = LetBang (5,0--5,4)
+                                          InlineKeyword = None
+                                          EqualsRange = Some (5,20--5,21) })]
+                  Body = ImplicitZero (5,40--5,40)
+                  Range = (5,0--5,40)
+                  Trivia = { InKeyword = None } }, (5,0--5,40))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--5,40), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 19.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 19.fs.bsl
index cb6025c1cb0..7d6a002bdc9 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 19.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 19.fs.bsl	
@@ -9,73 +9,77 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, false,
-                       [SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (As
-                                   (LongIdent
-                                      (SynLongIdent ([Even], [], [None]), None,
-                                       None, Pats [], None, (4,9--4,13)),
-                                    Named
-                                      (SynIdent (x, None), false, None,
-                                       (4,17--4,18)), (4,9--4,18)),
-                                 LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,9--4,23)), (4,8--4,24)), None,
-                           Const (Int32 1, (4,27--4,28)), (4,8--4,24),
-                           Yes (4,4--4,28), { LeadingKeyword = Let (4,4--4,7)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,25--4,26) })],
-                       LetOrUse
-                         (false, false, true, true,
-                          [SynBinding
-                             (None, Normal, false, false, [], PreXmlDocEmpty,
-                              SynValData
-                                (None,
-                                 SynValInfo ([], SynArgInfo ([], false, None)),
-                                 None),
-                              Paren
-                                (Typed
-                                   (As
-                                      (LongIdent
-                                         (SynLongIdent ([Even], [], [None]),
-                                          None, None, Pats [], None,
-                                          (5,10--5,14)),
-                                       Named
-                                         (SynIdent (x, None), false, None,
-                                          (5,18--5,19)), (5,10--5,19)),
-                                    LongIdent (SynLongIdent ([int], [], [None])),
-                                    (5,10--5,24)), (5,9--5,25)), None,
-                              App
-                                (NonAtomic, false, Ident async,
-                                 ComputationExpr
-                                   (false,
-                                    YieldOrReturn
-                                      ((false, true),
-                                       Const (Int32 2, (5,43--5,44)),
-                                       (5,36--5,44),
-                                       { YieldOrReturnKeyword = (5,36--5,42) }),
-                                    (5,34--5,46)), (5,28--5,46)), (5,4--5,46),
-                              Yes (5,4--5,46),
-                              { LeadingKeyword = Let (5,4--5,8)
-                                InlineKeyword = None
-                                EqualsRange = Some (5,26--5,27) })],
-                          YieldOrReturn
-                            ((false, true), Ident x, (6,4--6,12),
-                             { YieldOrReturnKeyword = (6,4--6,10) }),
-                          (5,4--6,12), { LetOrUseKeyword = (5,4--5,8)
-                                         InKeyword = None
-                                         EqualsRange = Some (5,26--5,27) }),
-                       (4,4--6,12), { LetOrUseKeyword = (4,4--4,7)
-                                      InKeyword = None
-                                      EqualsRange = Some (4,25--4,26) }),
-                    (3,6--7,1)), (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (As
+                                     (LongIdent
+                                        (SynLongIdent ([Even], [], [None]), None,
+                                         None, Pats [], None, (4,9--4,13)),
+                                      Named
+                                        (SynIdent (x, None), false, None,
+                                         (4,17--4,18)), (4,9--4,18)),
+                                   LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,9--4,23)), (4,8--4,24)), None,
+                             Const (Int32 1, (4,27--4,28)), (4,8--4,24),
+                             Yes (4,4--4,28),
+                             { LeadingKeyword = Let (4,4--4,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,25--4,26) })]
+                        Body =
+                         LetOrUse
+                           { IsRecursive = false
+                             Bindings =
+                              [SynBinding
+                                 (None, Normal, false, false, [], PreXmlDocEmpty,
+                                  SynValData
+                                    (None,
+                                     SynValInfo
+                                       ([], SynArgInfo ([], false, None)), None),
+                                  Paren
+                                    (Typed
+                                       (As
+                                          (LongIdent
+                                             (SynLongIdent ([Even], [], [None]),
+                                              None, None, Pats [], None,
+                                              (5,10--5,14)),
+                                           Named
+                                             (SynIdent (x, None), false, None,
+                                              (5,18--5,19)), (5,10--5,19)),
+                                        LongIdent
+                                          (SynLongIdent ([int], [], [None])),
+                                        (5,10--5,24)), (5,9--5,25)), None,
+                                  App
+                                    (NonAtomic, false, Ident async,
+                                     ComputationExpr
+                                       (false,
+                                        YieldOrReturn
+                                          ((false, true),
+                                           Const (Int32 2, (5,43--5,44)),
+                                           (5,36--5,44),
+                                           { YieldOrReturnKeyword = (5,36--5,42) }),
+                                        (5,34--5,46)), (5,28--5,46)),
+                                  (5,4--5,46), Yes (5,4--5,46),
+                                  { LeadingKeyword = LetBang (5,4--5,8)
+                                    InlineKeyword = None
+                                    EqualsRange = Some (5,26--5,27) })]
+                             Body =
+                              YieldOrReturn
+                                ((false, true), Ident x, (6,4--6,12),
+                                 { YieldOrReturnKeyword = (6,4--6,10) })
+                             Range = (5,4--6,12)
+                             Trivia = { InKeyword = None } }
+                        Range = (4,4--6,12)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 20.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 20.fs.bsl
index 9177dc08cb8..fbf23cdeee7 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 20.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 20.fs.bsl	
@@ -9,77 +9,80 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, false,
-                       [SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           As
-                             (LongIdent
-                                (SynLongIdent ([Even], [], [None]), None, None,
-                                 Pats [], None, (4,8--4,12)),
-                              Named
-                                (SynIdent (x, None), false, None, (4,16--4,17)),
-                              (4,8--4,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,19--4,22), [],
-                                 { ColonRange = Some (4,17--4,18) })),
-                           Typed
-                             (Const (Int32 1, (4,25--4,26)),
-                              LongIdent (SynLongIdent ([int], [], [None])),
-                              (4,25--4,26)), (4,8--4,17), Yes (4,4--4,26),
-                           { LeadingKeyword = Let (4,4--4,7)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,23--4,24) })],
-                       LetOrUse
-                         (false, false, true, true,
-                          [SynBinding
-                             (None, Normal, false, false, [], PreXmlDocEmpty,
-                              SynValData
-                                (None,
-                                 SynValInfo ([], SynArgInfo ([], false, None)),
-                                 None),
-                              As
-                                (LongIdent
-                                   (SynLongIdent ([Even], [], [None]), None,
-                                    None, Pats [], None, (5,9--5,13)),
-                                 Named
-                                   (SynIdent (x, None), false, None,
-                                    (5,17--5,18)), (5,9--5,18)),
-                              Some
-                                (SynBindingReturnInfo
-                                   (LongIdent (SynLongIdent ([int], [], [None])),
-                                    (5,20--5,23), [],
-                                    { ColonRange = Some (5,18--5,19) })),
-                              App
-                                (NonAtomic, false, Ident async,
-                                 ComputationExpr
-                                   (false,
-                                    YieldOrReturn
-                                      ((false, true),
-                                       Const (Int32 2, (5,41--5,42)),
-                                       (5,34--5,42),
-                                       { YieldOrReturnKeyword = (5,34--5,40) }),
-                                    (5,32--5,44)), (5,26--5,44)), (5,4--5,44),
-                              Yes (5,4--5,44),
-                              { LeadingKeyword = Let (5,4--5,8)
-                                InlineKeyword = None
-                                EqualsRange = Some (5,24--5,25) })],
-                          YieldOrReturn
-                            ((false, true), Ident x, (6,4--6,12),
-                             { YieldOrReturnKeyword = (6,4--6,10) }),
-                          (5,4--6,12), { LetOrUseKeyword = (5,4--5,8)
-                                         InKeyword = None
-                                         EqualsRange = Some (5,24--5,25) }),
-                       (4,4--6,12), { LetOrUseKeyword = (4,4--4,7)
-                                      InKeyword = None
-                                      EqualsRange = Some (4,23--4,24) }),
-                    (3,6--7,1)), (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             As
+                               (LongIdent
+                                  (SynLongIdent ([Even], [], [None]), None, None,
+                                   Pats [], None, (4,8--4,12)),
+                                Named
+                                  (SynIdent (x, None), false, None, (4,16--4,17)),
+                                (4,8--4,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,19--4,22), [],
+                                   { ColonRange = Some (4,17--4,18) })),
+                             Typed
+                               (Const (Int32 1, (4,25--4,26)),
+                                LongIdent (SynLongIdent ([int], [], [None])),
+                                (4,25--4,26)), (4,8--4,17), Yes (4,4--4,26),
+                             { LeadingKeyword = Let (4,4--4,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,23--4,24) })]
+                        Body =
+                         LetOrUse
+                           { IsRecursive = false
+                             Bindings =
+                              [SynBinding
+                                 (None, Normal, false, false, [], PreXmlDocEmpty,
+                                  SynValData
+                                    (None,
+                                     SynValInfo
+                                       ([], SynArgInfo ([], false, None)), None),
+                                  As
+                                    (LongIdent
+                                       (SynLongIdent ([Even], [], [None]), None,
+                                        None, Pats [], None, (5,9--5,13)),
+                                     Named
+                                       (SynIdent (x, None), false, None,
+                                        (5,17--5,18)), (5,9--5,18)),
+                                  Some
+                                    (SynBindingReturnInfo
+                                       (LongIdent
+                                          (SynLongIdent ([int], [], [None])),
+                                        (5,20--5,23), [],
+                                        { ColonRange = Some (5,18--5,19) })),
+                                  App
+                                    (NonAtomic, false, Ident async,
+                                     ComputationExpr
+                                       (false,
+                                        YieldOrReturn
+                                          ((false, true),
+                                           Const (Int32 2, (5,41--5,42)),
+                                           (5,34--5,42),
+                                           { YieldOrReturnKeyword = (5,34--5,40) }),
+                                        (5,32--5,44)), (5,26--5,44)),
+                                  (5,4--5,44), Yes (5,4--5,44),
+                                  { LeadingKeyword = LetBang (5,4--5,8)
+                                    InlineKeyword = None
+                                    EqualsRange = Some (5,24--5,25) })]
+                             Body =
+                              YieldOrReturn
+                                ((false, true), Ident x, (6,4--6,12),
+                                 { YieldOrReturnKeyword = (6,4--6,10) })
+                             Range = (5,4--6,12)
+                             Trivia = { InKeyword = None } }
+                        Range = (4,4--6,12)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang 21.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang 21.fs.bsl
index bfbbb3ea841..10aaea3548d 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang 21.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang 21.fs.bsl	
@@ -9,39 +9,42 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, false,
-                       [SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Named
-                                   (SynIdent (x, None), false, None, (4,9--4,10)),
-                                 LongIdent (SynLongIdent ([string], [], [None])),
-                                 (4,9--4,18)), (4,8--4,19)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,21--4,24), [],
-                                 { ColonRange = Some (4,19--4,20) })),
-                           Typed
-                             (Const (Int32 2, (4,27--4,28)),
-                              LongIdent (SynLongIdent ([int], [], [None])),
-                              (4,27--4,28)), (4,8--4,19), Yes (4,4--4,28),
-                           { LeadingKeyword = Let (4,4--4,7)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,25--4,26) })],
-                       YieldOrReturn
-                         ((false, true), Ident x, (5,4--5,12),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (4,4--5,12),
-                       { LetOrUseKeyword = (4,4--4,7)
-                         InKeyword = None
-                         EqualsRange = Some (4,25--4,26) }), (3,6--6,1)),
-                 (3,0--6,1)), (3,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Named
+                                     (SynIdent (x, None), false, None,
+                                      (4,9--4,10)),
+                                   LongIdent
+                                     (SynLongIdent ([string], [], [None])),
+                                   (4,9--4,18)), (4,8--4,19)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,21--4,24), [],
+                                   { ColonRange = Some (4,19--4,20) })),
+                             Typed
+                               (Const (Int32 2, (4,27--4,28)),
+                                LongIdent (SynLongIdent ([int], [], [None])),
+                                (4,27--4,28)), (4,8--4,19), Yes (4,4--4,28),
+                             { LeadingKeyword = Let (4,4--4,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,25--4,26) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident x, (5,4--5,12),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (4,4--5,12)
+                        Trivia = { InKeyword = None } }, (3,6--6,1)), (3,0--6,1)),
+              (3,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 01.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 01.fs.bsl
index 17749b3e300..823c0eb3e83 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 01.fs.bsl	
@@ -10,64 +10,69 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (res, None), false, None, (4,9--4,12)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,14--4,17), [],
-                                 { ColonRange = Some (4,12--4,13) })),
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,35--4,36)),
-                                    (4,28--4,36),
-                                    { YieldOrReturnKeyword = (4,28--4,34) }),
-                                 (4,26--4,38)), (4,20--4,38)), (4,4--4,38),
-                           Yes (4,4--4,38), { LeadingKeyword = Let (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,18--4,19) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (res2, None), false, None, (5,9--5,13)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (5,15--5,18), [],
-                                 { ColonRange = Some (5,13--5,14) })),
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 2, (5,36--5,37)),
-                                    (5,29--5,37),
-                                    { YieldOrReturnKeyword = (5,29--5,35) }),
-                                 (5,27--5,39)), (5,21--5,39)), (5,4--5,39),
-                           Yes (5,4--5,39), { LeadingKeyword = And (5,4--5,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (5,19--5,20) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (6,4--6,14),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,18--4,19) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (res, None), false, None, (4,9--4,12)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,14--4,17), [],
+                                   { ColonRange = Some (4,12--4,13) })),
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,35--4,36)),
+                                      (4,28--4,36),
+                                      { YieldOrReturnKeyword = (4,28--4,34) }),
+                                   (4,26--4,38)), (4,20--4,38)), (4,4--4,38),
+                             Yes (4,4--4,38),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,18--4,19) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (res2, None), false, None, (5,9--5,13)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (5,15--5,18), [],
+                                   { ColonRange = Some (5,13--5,14) })),
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 2, (5,36--5,37)),
+                                      (5,29--5,37),
+                                      { YieldOrReturnKeyword = (5,29--5,35) }),
+                                   (5,27--5,39)), (5,21--5,39)), (5,4--5,39),
+                             Yes (5,4--5,39),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,19--5,20) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (6,4--6,14),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,14)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 02.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 02.fs.bsl
index c37abd28a89..9513c074c63 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 02.fs.bsl	
@@ -10,64 +10,69 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Named
-                                   (SynIdent (res, None), false, None,
-                                    (4,10--4,13)),
-                                 LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,10--4,18)), (4,9--4,19)), None,
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,37--4,38)),
-                                    (4,30--4,38),
-                                    { YieldOrReturnKeyword = (4,30--4,36) }),
-                                 (4,28--4,40)), (4,22--4,40)), (4,4--4,40),
-                           Yes (4,4--4,40), { LeadingKeyword = Let (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,20--4,21) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Named
-                                   (SynIdent (res2, None), false, None,
-                                    (5,10--5,14)),
-                                 LongIdent (SynLongIdent ([int], [], [None])),
-                                 (5,10--5,19)), (5,9--5,20)), None,
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 2, (5,38--5,39)),
-                                    (5,31--5,39),
-                                    { YieldOrReturnKeyword = (5,31--5,37) }),
-                                 (5,29--5,41)), (5,23--5,41)), (5,4--5,41),
-                           Yes (5,4--5,41), { LeadingKeyword = And (5,4--5,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (5,21--5,22) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (6,4--6,14),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,20--4,21) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Named
+                                     (SynIdent (res, None), false, None,
+                                      (4,10--4,13)),
+                                   LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,10--4,18)), (4,9--4,19)), None,
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,37--4,38)),
+                                      (4,30--4,38),
+                                      { YieldOrReturnKeyword = (4,30--4,36) }),
+                                   (4,28--4,40)), (4,22--4,40)), (4,4--4,40),
+                             Yes (4,4--4,40),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,20--4,21) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Named
+                                     (SynIdent (res2, None), false, None,
+                                      (5,10--5,14)),
+                                   LongIdent (SynLongIdent ([int], [], [None])),
+                                   (5,10--5,19)), (5,9--5,20)), None,
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 2, (5,38--5,39)),
+                                      (5,31--5,39),
+                                      { YieldOrReturnKeyword = (5,31--5,37) }),
+                                   (5,29--5,41)), (5,23--5,41)), (5,4--5,41),
+                             Yes (5,4--5,41),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,21--5,22) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (6,4--6,14),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,14)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 03.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 03.fs.bsl
index a3e3c97d298..a6200d4ef85 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 03.fs.bsl	
@@ -10,69 +10,71 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Record
-                                   ([NamePatPairField
-                                       (SynLongIdent ([Name], [], [None]),
-                                        Some (4,17--4,18), (4,12--4,23),
-                                        Named
-                                          (SynIdent (name, None), false, None,
-                                           (4,19--4,23)),
-                                        Some ((4,23--4,24), Some (4,24)));
-                                     NamePatPairField
-                                       (SynLongIdent ([Age], [], [None]),
-                                        Some (4,29--4,30), (4,25--4,34),
-                                        Named
-                                          (SynIdent (age, None), false, None,
-                                           (4,31--4,34)), None)], (4,10--4,36)),
-                                 LongIdent (SynLongIdent ([Person], [], [None])),
-                                 (4,10--4,44)), (4,9--4,45)), None,
-                           App
-                             (Atomic, false, Ident asyncPerson,
-                              Const (Unit, (4,59--4,61)), (4,48--4,61)),
-                           (4,4--4,61), Yes (4,4--4,61),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,46--4,47) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Record
-                                   ([NamePatPairField
-                                       (SynLongIdent ([Id], [], [None]),
-                                        Some (5,15--5,16), (5,12--5,19),
-                                        Named
-                                          (SynIdent (id, None), false, None,
-                                           (5,17--5,19)), None)], (5,10--5,21)),
-                                 LongIdent (SynLongIdent ([User], [], [None])),
-                                 (5,10--5,27)), (5,9--5,28)), None,
-                           App
-                             (Atomic, false, Ident asyncUser,
-                              Const (Unit, (5,40--5,42)), (5,31--5,42)),
-                           (5,4--5,42), Yes (5,4--5,42),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,29--5,30) })],
-                       YieldOrReturn
-                         ((false, true), Ident name, (6,4--6,15),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,15),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,46--4,47) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Record
+                                     ([NamePatPairField
+                                         (SynLongIdent ([Name], [], [None]),
+                                          Some (4,17--4,18), (4,12--4,23),
+                                          Named
+                                            (SynIdent (name, None), false, None,
+                                             (4,19--4,23)),
+                                          Some ((4,23--4,24), Some (4,24)));
+                                       NamePatPairField
+                                         (SynLongIdent ([Age], [], [None]),
+                                          Some (4,29--4,30), (4,25--4,34),
+                                          Named
+                                            (SynIdent (age, None), false, None,
+                                             (4,31--4,34)), None)], (4,10--4,36)),
+                                   LongIdent
+                                     (SynLongIdent ([Person], [], [None])),
+                                   (4,10--4,44)), (4,9--4,45)), None,
+                             App
+                               (Atomic, false, Ident asyncPerson,
+                                Const (Unit, (4,59--4,61)), (4,48--4,61)),
+                             (4,4--4,61), Yes (4,4--4,61),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,46--4,47) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Record
+                                     ([NamePatPairField
+                                         (SynLongIdent ([Id], [], [None]),
+                                          Some (5,15--5,16), (5,12--5,19),
+                                          Named
+                                            (SynIdent (id, None), false, None,
+                                             (5,17--5,19)), None)], (5,10--5,21)),
+                                   LongIdent (SynLongIdent ([User], [], [None])),
+                                   (5,10--5,27)), (5,9--5,28)), None,
+                             App
+                               (Atomic, false, Ident asyncUser,
+                                Const (Unit, (5,40--5,42)), (5,31--5,42)),
+                             (5,4--5,42), Yes (5,4--5,42),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,29--5,30) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident name, (6,4--6,15),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,15)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 04.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 04.fs.bsl
index c50f2a3c6ab..d5b8d25eecc 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 04.fs.bsl	
@@ -10,71 +10,73 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Record
-                             ([NamePatPairField
-                                 (SynLongIdent ([Name], [], [None]),
-                                  Some (4,16--4,17), (4,11--4,22),
-                                  Named
-                                    (SynIdent (name, None), false, None,
-                                     (4,18--4,22)),
-                                  Some ((4,22--4,23), Some (4,23)));
-                               NamePatPairField
-                                 (SynLongIdent ([Age], [], [None]),
-                                  Some (4,28--4,29), (4,24--4,33),
-                                  Named
-                                    (SynIdent (age, None), false, None,
-                                     (4,30--4,33)), None)], (4,9--4,35)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([Person], [], [None])),
-                                 (4,37--4,43), [],
-                                 { ColonRange = Some (4,35--4,36) })),
-                           App
-                             (Atomic, false, Ident asyncPerson,
-                              Const (Unit, (4,57--4,59)), (4,46--4,59)),
-                           (4,4--4,59), Yes (4,4--4,59),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,44--4,45) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Record
-                             ([NamePatPairField
-                                 (SynLongIdent ([Id], [], [None]),
-                                  Some (5,14--5,15), (5,11--5,18),
-                                  Named
-                                    (SynIdent (id, None), false, None,
-                                     (5,16--5,18)), None)], (5,9--5,20)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([User], [], [None])),
-                                 (5,22--5,26), [],
-                                 { ColonRange = Some (5,20--5,21) })),
-                           App
-                             (Atomic, false, Ident asyncUser,
-                              Const (Unit, (5,38--5,40)), (5,29--5,40)),
-                           (5,4--5,40), Yes (5,4--5,40),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,27--5,28) })],
-                       YieldOrReturn
-                         ((false, true), Ident name, (6,4--6,15),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,15),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,44--4,45) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Record
+                               ([NamePatPairField
+                                   (SynLongIdent ([Name], [], [None]),
+                                    Some (4,16--4,17), (4,11--4,22),
+                                    Named
+                                      (SynIdent (name, None), false, None,
+                                       (4,18--4,22)),
+                                    Some ((4,22--4,23), Some (4,23)));
+                                 NamePatPairField
+                                   (SynLongIdent ([Age], [], [None]),
+                                    Some (4,28--4,29), (4,24--4,33),
+                                    Named
+                                      (SynIdent (age, None), false, None,
+                                       (4,30--4,33)), None)], (4,9--4,35)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent
+                                     (SynLongIdent ([Person], [], [None])),
+                                   (4,37--4,43), [],
+                                   { ColonRange = Some (4,35--4,36) })),
+                             App
+                               (Atomic, false, Ident asyncPerson,
+                                Const (Unit, (4,57--4,59)), (4,46--4,59)),
+                             (4,4--4,59), Yes (4,4--4,59),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,44--4,45) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Record
+                               ([NamePatPairField
+                                   (SynLongIdent ([Id], [], [None]),
+                                    Some (5,14--5,15), (5,11--5,18),
+                                    Named
+                                      (SynIdent (id, None), false, None,
+                                       (5,16--5,18)), None)], (5,9--5,20)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([User], [], [None])),
+                                   (5,22--5,26), [],
+                                   { ColonRange = Some (5,20--5,21) })),
+                             App
+                               (Atomic, false, Ident asyncUser,
+                                Const (Unit, (5,38--5,40)), (5,29--5,40)),
+                             (5,4--5,40), Yes (5,4--5,40),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,27--5,28) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident name, (6,4--6,15),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,15)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 05.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 05.fs.bsl
index 4a48b37dd02..8061024f183 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 05.fs.bsl	
@@ -10,70 +10,72 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Record
-                                   ([NamePatPairField
-                                       (SynLongIdent ([Name], [], [None]),
-                                        Some (4,17--4,18), (4,12--4,23),
-                                        Named
-                                          (SynIdent (name, None), false, None,
-                                           (4,19--4,23)),
-                                        Some ((4,23--4,24), Some (4,24)));
-                                     NamePatPairField
-                                       (SynLongIdent ([Age], [], [None]),
-                                        Some (4,29--4,30), (4,25--4,34),
-                                        Named
-                                          (SynIdent (age, None), false, None,
-                                           (4,31--4,34)), None)], (4,10--4,36)),
-                                 LongIdent (SynLongIdent ([Person], [], [None])),
-                                 (4,10--4,44)), (4,9--4,45)), None,
-                           App
-                             (Atomic, false, Ident asyncPerson,
-                              Const (Unit, (4,59--4,61)), (4,48--4,61)),
-                           (4,4--4,61), Yes (4,4--4,61),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,46--4,47) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Record
-                             ([NamePatPairField
-                                 (SynLongIdent ([Id], [], [None]),
-                                  Some (5,14--5,15), (5,11--5,18),
-                                  Named
-                                    (SynIdent (id, None), false, None,
-                                     (5,16--5,18)), None)], (5,9--5,20)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([User], [], [None])),
-                                 (5,22--5,26), [],
-                                 { ColonRange = Some (5,20--5,21) })),
-                           App
-                             (Atomic, false, Ident asyncUser,
-                              Const (Unit, (5,38--5,40)), (5,29--5,40)),
-                           (5,4--5,40), Yes (5,4--5,40),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,27--5,28) })],
-                       YieldOrReturn
-                         ((false, true), Ident name, (6,4--6,15),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,15),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,46--4,47) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Record
+                                     ([NamePatPairField
+                                         (SynLongIdent ([Name], [], [None]),
+                                          Some (4,17--4,18), (4,12--4,23),
+                                          Named
+                                            (SynIdent (name, None), false, None,
+                                             (4,19--4,23)),
+                                          Some ((4,23--4,24), Some (4,24)));
+                                       NamePatPairField
+                                         (SynLongIdent ([Age], [], [None]),
+                                          Some (4,29--4,30), (4,25--4,34),
+                                          Named
+                                            (SynIdent (age, None), false, None,
+                                             (4,31--4,34)), None)], (4,10--4,36)),
+                                   LongIdent
+                                     (SynLongIdent ([Person], [], [None])),
+                                   (4,10--4,44)), (4,9--4,45)), None,
+                             App
+                               (Atomic, false, Ident asyncPerson,
+                                Const (Unit, (4,59--4,61)), (4,48--4,61)),
+                             (4,4--4,61), Yes (4,4--4,61),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,46--4,47) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Record
+                               ([NamePatPairField
+                                   (SynLongIdent ([Id], [], [None]),
+                                    Some (5,14--5,15), (5,11--5,18),
+                                    Named
+                                      (SynIdent (id, None), false, None,
+                                       (5,16--5,18)), None)], (5,9--5,20)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([User], [], [None])),
+                                   (5,22--5,26), [],
+                                   { ColonRange = Some (5,20--5,21) })),
+                             App
+                               (Atomic, false, Ident asyncUser,
+                                Const (Unit, (5,38--5,40)), (5,29--5,40)),
+                             (5,4--5,40), Yes (5,4--5,40),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,27--5,28) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident name, (6,4--6,15),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,15)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 06.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 06.fs.bsl
index b22648e5d9f..90ec6bafb79 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 06.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 06.fs.bsl	
@@ -10,67 +10,70 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (LongIdent
-                                (SynLongIdent ([Union], [], [None]), None, None,
-                                 Pats
-                                   [Named
-                                      (SynIdent (value, None), false, None,
-                                       (4,16--4,21))], None, (4,10--4,21)),
-                              (4,9--4,22)), None,
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (4,36--4,38)), (4,25--4,38)),
-                           (4,4--4,38), Yes (4,4--4,38),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,23--4,24) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (LongIdent
-                                (SynLongIdent ([Union], [], [None]), None, None,
-                                 Pats
-                                   [Named
-                                      (SynIdent (value2, None), false, None,
-                                       (5,16--5,22))], None, (5,10--5,22)),
-                              (5,9--5,23)), None,
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (5,37--5,39)), (5,26--5,39)),
-                           (5,4--5,39), Yes (5,4--5,39),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,24--5,25) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (LongIdent
+                                  (SynLongIdent ([Union], [], [None]), None,
+                                   None,
+                                   Pats
+                                     [Named
+                                        (SynIdent (value, None), false, None,
+                                         (4,16--4,21))], None, (4,10--4,21)),
+                                (4,9--4,22)), None,
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,17--6,18)), Ident value, (6,11--6,18)),
-                             Ident value2, (6,11--6,25)), (6,4--6,25),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,25),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,23--4,24) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (4,36--4,38)), (4,25--4,38)),
+                             (4,4--4,38), Yes (4,4--4,38),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,23--4,24) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (LongIdent
+                                  (SynLongIdent ([Union], [], [None]), None,
+                                   None,
+                                   Pats
+                                     [Named
+                                        (SynIdent (value2, None), false, None,
+                                         (5,16--5,22))], None, (5,10--5,22)),
+                                (5,9--5,23)), None,
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (5,37--5,39)), (5,26--5,39)),
+                             (5,4--5,39), Yes (5,4--5,39),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,24--5,25) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,17--6,18)), Ident value, (6,11--6,18)),
+                               Ident value2, (6,11--6,25)), (6,4--6,25),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,25)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 07.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 07.fs.bsl
index 433e0905db4..75d2b0f68c3 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 07.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 07.fs.bsl	
@@ -10,63 +10,64 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           LongIdent
-                             (SynLongIdent ([Union], [], [None]), None, None,
-                              Pats
-                                [Named
-                                   (SynIdent (value, None), false, None,
-                                    (4,15--4,20))], None, (4,9--4,20)), None,
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (4,34--4,36)), (4,23--4,36)),
-                           (4,4--4,36), Yes (4,4--4,36),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,21--4,22) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           LongIdent
-                             (SynLongIdent ([Union], [], [None]), None, None,
-                              Pats
-                                [Named
-                                   (SynIdent (value2, None), false, None,
-                                    (5,15--5,21))], None, (5,9--5,21)), None,
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (5,35--5,37)), (5,24--5,37)),
-                           (5,4--5,37), Yes (5,4--5,37),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,22--5,23) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             LongIdent
+                               (SynLongIdent ([Union], [], [None]), None, None,
+                                Pats
+                                  [Named
+                                     (SynIdent (value, None), false, None,
+                                      (4,15--4,20))], None, (4,9--4,20)), None,
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,17--6,18)), Ident value, (6,11--6,18)),
-                             Ident value2, (6,11--6,25)), (6,4--6,25),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,25),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,21--4,22) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (4,34--4,36)), (4,23--4,36)),
+                             (4,4--4,36), Yes (4,4--4,36),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,21--4,22) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             LongIdent
+                               (SynLongIdent ([Union], [], [None]), None, None,
+                                Pats
+                                  [Named
+                                     (SynIdent (value2, None), false, None,
+                                      (5,15--5,21))], None, (5,9--5,21)), None,
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (5,35--5,37)), (5,24--5,37)),
+                             (5,4--5,37), Yes (5,4--5,37),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,22--5,23) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,17--6,18)), Ident value, (6,11--6,18)),
+                               Ident value2, (6,11--6,25)), (6,4--6,25),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,25)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 08.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 08.fs.bsl
index 6086dd750c9..fb352a0fb1e 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 08.fs.bsl	
@@ -10,87 +10,90 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (LongIdent
-                                (SynLongIdent ([Union], [], [None]), None, None,
-                                 Pats
-                                   [Named
-                                      (SynIdent (value, None), false, None,
-                                       (4,16--4,21))], None, (4,10--4,21)),
-                              (4,9--4,22)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([option], [], [None])),
-                                    None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (4,24--4,34)), (4,24--4,34), [],
-                                 { ColonRange = Some (4,22--4,23) })),
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (4,48--4,50)), (4,37--4,50)),
-                           (4,4--4,50), Yes (4,4--4,50),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,35--4,36) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (LongIdent
-                                (SynLongIdent ([Union], [], [None]), None, None,
-                                 Pats
-                                   [Named
-                                      (SynIdent (value2, None), false, None,
-                                       (5,16--5,22))], None, (5,10--5,22)),
-                              (5,9--5,23)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([option], [], [None])),
-                                    None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (5,25--5,35)), (5,25--5,35), [],
-                                 { ColonRange = Some (5,23--5,24) })),
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (5,49--5,51)), (5,38--5,51)),
-                           (5,4--5,51), Yes (5,4--5,51),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,36--5,37) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (LongIdent
+                                  (SynLongIdent ([Union], [], [None]), None,
+                                   None,
+                                   Pats
+                                     [Named
+                                        (SynIdent (value, None), false, None,
+                                         (4,16--4,21))], None, (4,10--4,21)),
+                                (4,9--4,22)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([option], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (4,24--4,34)), (4,24--4,34),
+                                   [], { ColonRange = Some (4,22--4,23) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,17--6,18)), Ident value, (6,11--6,18)),
-                             Ident value2, (6,11--6,25)), (6,4--6,25),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,25),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,35--4,36) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (4,48--4,50)), (4,37--4,50)),
+                             (4,4--4,50), Yes (4,4--4,50),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,35--4,36) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (LongIdent
+                                  (SynLongIdent ([Union], [], [None]), None,
+                                   None,
+                                   Pats
+                                     [Named
+                                        (SynIdent (value2, None), false, None,
+                                         (5,16--5,22))], None, (5,10--5,22)),
+                                (5,9--5,23)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([option], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (5,25--5,35)), (5,25--5,35),
+                                   [], { ColonRange = Some (5,23--5,24) })),
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (5,49--5,51)), (5,38--5,51)),
+                             (5,4--5,51), Yes (5,4--5,51),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,36--5,37) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,17--6,18)), Ident value, (6,11--6,18)),
+                               Ident value2, (6,11--6,25)), (6,4--6,25),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,25)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 09.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 09.fs.bsl
index 688a32c991e..f41a4e2c3fd 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 09.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 09.fs.bsl	
@@ -10,83 +10,84 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           LongIdent
-                             (SynLongIdent ([Union], [], [None]), None, None,
-                              Pats
-                                [Named
-                                   (SynIdent (value, None), false, None,
-                                    (4,15--4,20))], None, (4,9--4,20)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([option], [], [None])),
-                                    None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (4,22--4,32)), (4,22--4,32), [],
-                                 { ColonRange = Some (4,20--4,21) })),
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (4,46--4,48)), (4,35--4,48)),
-                           (4,4--4,48), Yes (4,4--4,48),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,33--4,34) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           LongIdent
-                             (SynLongIdent ([Union], [], [None]), None, None,
-                              Pats
-                                [Named
-                                   (SynIdent (value2, None), false, None,
-                                    (5,15--5,21))], None, (5,9--5,21)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([option], [], [None])),
-                                    None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (5,23--5,33)), (5,23--5,33), [],
-                                 { ColonRange = Some (5,21--5,22) })),
-                           App
-                             (Atomic, false, Ident asyncOption,
-                              Const (Unit, (5,47--5,49)), (5,36--5,49)),
-                           (5,4--5,49), Yes (5,4--5,49),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,34--5,35) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             LongIdent
+                               (SynLongIdent ([Union], [], [None]), None, None,
+                                Pats
+                                  [Named
+                                     (SynIdent (value, None), false, None,
+                                      (4,15--4,20))], None, (4,9--4,20)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([option], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (4,22--4,32)), (4,22--4,32),
+                                   [], { ColonRange = Some (4,20--4,21) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,17--6,18)), Ident value, (6,11--6,18)),
-                             Ident value2, (6,11--6,25)), (6,4--6,25),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,25),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,33--4,34) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (4,46--4,48)), (4,35--4,48)),
+                             (4,4--4,48), Yes (4,4--4,48),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,33--4,34) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             LongIdent
+                               (SynLongIdent ([Union], [], [None]), None, None,
+                                Pats
+                                  [Named
+                                     (SynIdent (value2, None), false, None,
+                                      (5,15--5,21))], None, (5,9--5,21)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([option], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (5,23--5,33)), (5,23--5,33),
+                                   [], { ColonRange = Some (5,21--5,22) })),
+                             App
+                               (Atomic, false, Ident asyncOption,
+                                Const (Unit, (5,47--5,49)), (5,36--5,49)),
+                             (5,4--5,49), Yes (5,4--5,49),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,34--5,35) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,17--6,18)), Ident value, (6,11--6,18)),
+                               Ident value2, (6,11--6,25)), (6,4--6,25),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,25)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 10.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 10.fs.bsl
index 27e96d1da50..495ae788362 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 10.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 10.fs.bsl	
@@ -10,77 +10,79 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (x, None), false, None,
-                                    (4,10--4,11)),
-                                 Named
-                                   (SynIdent (y, None), false, None,
-                                    (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,19--4,22), [],
-                                 { ColonRange = Some (4,17--4,18) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,33--4,35)), (4,25--4,35)),
-                           (4,4--4,35), Yes (4,4--4,35),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,23--4,24) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (a, None), false, None,
-                                    (5,10--5,11)),
-                                 Named
-                                   (SynIdent (b, None), false, None,
-                                    (5,15--5,16)), (5,10--5,16)), (5,9--5,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([string], [], [None])),
-                                 (5,19--5,25), [],
-                                 { ColonRange = Some (5,17--5,18) })),
-                           App
-                             (Atomic, false, Ident asyncString,
-                              Const (Unit, (5,39--5,41)), (5,28--5,41)),
-                           (5,4--5,41), Yes (5,4--5,41),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,26--5,27) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (x, None), false, None,
+                                      (4,10--4,11)),
+                                   Named
+                                     (SynIdent (y, None), false, None,
+                                      (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,19--4,22), [],
+                                   { ColonRange = Some (4,17--4,18) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,13--6,14)), Ident x, (6,11--6,14)),
-                             Ident b, (6,11--6,16)), (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,23--4,24) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,33--4,35)), (4,25--4,35)),
+                             (4,4--4,35), Yes (4,4--4,35),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,23--4,24) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (a, None), false, None,
+                                      (5,10--5,11)),
+                                   Named
+                                     (SynIdent (b, None), false, None,
+                                      (5,15--5,16)), (5,10--5,16)), (5,9--5,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent
+                                     (SynLongIdent ([string], [], [None])),
+                                   (5,19--5,25), [],
+                                   { ColonRange = Some (5,17--5,18) })),
+                             App
+                               (Atomic, false, Ident asyncString,
+                                Const (Unit, (5,39--5,41)), (5,28--5,41)),
+                             (5,4--5,41), Yes (5,4--5,41),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,26--5,27) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,13--6,14)), Ident x, (6,11--6,14)),
+                               Ident b, (6,11--6,16)), (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 11.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 11.fs.bsl
index f3d45337e72..c3dde5628f3 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 11.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 11.fs.bsl	
@@ -10,73 +10,75 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           As
-                             (Named
-                                (SynIdent (x, None), false, None, (4,9--4,10)),
-                              Named
-                                (SynIdent (y, None), false, None, (4,14--4,15)),
-                              (4,9--4,15)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,17--4,20), [],
-                                 { ColonRange = Some (4,15--4,16) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,31--4,33)), (4,23--4,33)),
-                           (4,4--4,33), Yes (4,4--4,33),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,21--4,22) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           As
-                             (Named
-                                (SynIdent (a, None), false, None, (5,9--5,10)),
-                              Named
-                                (SynIdent (b, None), false, None, (5,14--5,15)),
-                              (5,9--5,15)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([string], [], [None])),
-                                 (5,17--5,23), [],
-                                 { ColonRange = Some (5,15--5,16) })),
-                           App
-                             (Atomic, false, Ident asyncString,
-                              Const (Unit, (5,37--5,39)), (5,26--5,39)),
-                           (5,4--5,39), Yes (5,4--5,39),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,24--5,25) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             As
+                               (Named
+                                  (SynIdent (x, None), false, None, (4,9--4,10)),
+                                Named
+                                  (SynIdent (y, None), false, None, (4,14--4,15)),
+                                (4,9--4,15)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,17--4,20), [],
+                                   { ColonRange = Some (4,15--4,16) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,13--6,14)), Ident x, (6,11--6,14)),
-                             Ident b, (6,11--6,16)), (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,21--4,22) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,31--4,33)), (4,23--4,33)),
+                             (4,4--4,33), Yes (4,4--4,33),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,21--4,22) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             As
+                               (Named
+                                  (SynIdent (a, None), false, None, (5,9--5,10)),
+                                Named
+                                  (SynIdent (b, None), false, None, (5,14--5,15)),
+                                (5,9--5,15)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent
+                                     (SynLongIdent ([string], [], [None])),
+                                   (5,17--5,23), [],
+                                   { ColonRange = Some (5,15--5,16) })),
+                             App
+                               (Atomic, false, Ident asyncString,
+                                Const (Unit, (5,37--5,39)), (5,26--5,39)),
+                             (5,4--5,39), Yes (5,4--5,39),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,24--5,25) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,13--6,14)), Ident x, (6,11--6,14)),
+                               Ident b, (6,11--6,16)), (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 12.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 12.fs.bsl
index f2e9ded50b8..b4e302ba1fa 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 12.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 12.fs.bsl	
@@ -10,63 +10,64 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           As
-                             (Named
-                                (SynIdent (x, None), false, None, (4,9--4,10)),
-                              Named
-                                (SynIdent (y, None), false, None, (4,14--4,15)),
-                              (4,9--4,15)), None,
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,26--4,28)), (4,18--4,28)),
-                           (4,4--4,28), Yes (4,4--4,28),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,16--4,17) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           As
-                             (Named
-                                (SynIdent (a, None), false, None, (5,9--5,10)),
-                              Named
-                                (SynIdent (b, None), false, None, (5,14--5,15)),
-                              (5,9--5,15)), None,
-                           App
-                             (Atomic, false, Ident asyncString,
-                              Const (Unit, (5,29--5,31)), (5,18--5,31)),
-                           (5,4--5,31), Yes (5,4--5,31),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,16--5,17) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             As
+                               (Named
+                                  (SynIdent (x, None), false, None, (4,9--4,10)),
+                                Named
+                                  (SynIdent (y, None), false, None, (4,14--4,15)),
+                                (4,9--4,15)), None,
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,13--6,14)), Ident x, (6,11--6,14)),
-                             Ident b, (6,11--6,16)), (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,16--4,17) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,26--4,28)), (4,18--4,28)),
+                             (4,4--4,28), Yes (4,4--4,28),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,16--4,17) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             As
+                               (Named
+                                  (SynIdent (a, None), false, None, (5,9--5,10)),
+                                Named
+                                  (SynIdent (b, None), false, None, (5,14--5,15)),
+                                (5,9--5,15)), None,
+                             App
+                               (Atomic, false, Ident asyncString,
+                                Const (Unit, (5,29--5,31)), (5,18--5,31)),
+                             (5,4--5,31), Yes (5,4--5,31),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,16--5,17) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,13--6,14)), Ident x, (6,11--6,14)),
+                               Ident b, (6,11--6,16)), (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 13.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 13.fs.bsl
index 2fcf04dc901..d7716431a9d 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 13.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 13.fs.bsl	
@@ -10,76 +10,78 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (ArrayOrList
-                                   (true,
-                                    [Named
-                                       (SynIdent (first, None), false, None,
-                                        (4,13--4,18));
-                                     Named
-                                       (SynIdent (second, None), false, None,
-                                        (4,20--4,26))], (4,10--4,29)),
-                                 App
-                                   (LongIdent
-                                      (SynLongIdent ([array], [], [None])), None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (4,31--4,40)), (4,10--4,40)),
-                              (4,9--4,41)), None,
-                           App
-                             (Atomic, false, Ident asyncArray,
-                              Const (Unit, (4,54--4,56)), (4,44--4,56)),
-                           (4,4--4,56), Yes (4,4--4,56),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,42--4,43) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (ListCons
-                                (Named
-                                   (SynIdent (head, None), false, None,
-                                    (5,10--5,14)),
-                                 Typed
-                                   (Named
-                                      (SynIdent (tail, None), false, None,
-                                       (5,18--5,22)),
-                                    App
-                                      (LongIdent
-                                         (SynLongIdent ([list], [], [None])),
-                                       None,
-                                       [LongIdent
-                                          (SynLongIdent ([string], [], [None]))],
-                                       [], None, true, (5,24--5,35)),
-                                    (5,18--5,35)), (5,10--5,35),
-                                 { ColonColonRange = (5,15--5,17) }),
-                              (5,9--5,36)), None,
-                           App
-                             (Atomic, false, Ident asyncList,
-                              Const (Unit, (5,48--5,50)), (5,39--5,50)),
-                           (5,4--5,50), Yes (5,4--5,50),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,37--5,38) })],
-                       YieldOrReturn
-                         ((false, true), Ident first, (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,42--4,43) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (ArrayOrList
+                                     (true,
+                                      [Named
+                                         (SynIdent (first, None), false, None,
+                                          (4,13--4,18));
+                                       Named
+                                         (SynIdent (second, None), false, None,
+                                          (4,20--4,26))], (4,10--4,29)),
+                                   App
+                                     (LongIdent
+                                        (SynLongIdent ([array], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (4,31--4,40)), (4,10--4,40)),
+                                (4,9--4,41)), None,
+                             App
+                               (Atomic, false, Ident asyncArray,
+                                Const (Unit, (4,54--4,56)), (4,44--4,56)),
+                             (4,4--4,56), Yes (4,4--4,56),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,42--4,43) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (ListCons
+                                  (Named
+                                     (SynIdent (head, None), false, None,
+                                      (5,10--5,14)),
+                                   Typed
+                                     (Named
+                                        (SynIdent (tail, None), false, None,
+                                         (5,18--5,22)),
+                                      App
+                                        (LongIdent
+                                           (SynLongIdent ([list], [], [None])),
+                                         None,
+                                         [LongIdent
+                                            (SynLongIdent ([string], [], [None]))],
+                                         [], None, true, (5,24--5,35)),
+                                      (5,18--5,35)), (5,10--5,35),
+                                   { ColonColonRange = (5,15--5,17) }),
+                                (5,9--5,36)), None,
+                             App
+                               (Atomic, false, Ident asyncList,
+                                Const (Unit, (5,48--5,50)), (5,39--5,50)),
+                             (5,4--5,50), Yes (5,4--5,50),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,37--5,38) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident first, (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 14.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 14.fs.bsl
index 361bf9c9074..c7eb2d36e34 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 14.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 14.fs.bsl	
@@ -10,73 +10,78 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           ArrayOrList
-                             (true,
-                              [Named
-                                 (SynIdent (first, None), false, None,
-                                  (4,12--4,17));
-                               Named
-                                 (SynIdent (second, None), false, None,
-                                  (4,19--4,25))], (4,9--4,28)),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([array], [], [None])), None,
-                                    [LongIdent
-                                       (SynLongIdent ([int], [], [None]))], [],
-                                    None, true, (4,30--4,39)), (4,30--4,39), [],
-                                 { ColonRange = Some (4,28--4,29) })),
-                           App
-                             (Atomic, false, Ident asyncArray,
-                              Const (Unit, (4,52--4,54)), (4,42--4,54)),
-                           (4,4--4,54), Yes (4,4--4,54),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,40--4,41) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           ListCons
-                             (Named
-                                (SynIdent (head, None), false, None, (5,9--5,13)),
-                              Named
-                                (SynIdent (tail, None), false, None,
-                                 (5,17--5,21)), (5,9--5,21),
-                              { ColonColonRange = (5,14--5,16) }),
-                           Some
-                             (SynBindingReturnInfo
-                                (App
-                                   (LongIdent
-                                      (SynLongIdent ([list], [], [None])), None,
-                                    [LongIdent
-                                       (SynLongIdent ([string], [], [None]))],
-                                    [], None, true, (5,23--5,34)), (5,23--5,34),
-                                 [], { ColonRange = Some (5,21--5,22) })),
-                           App
-                             (Atomic, false, Ident asyncList,
-                              Const (Unit, (5,46--5,48)), (5,37--5,48)),
-                           (5,4--5,48), Yes (5,4--5,48),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,35--5,36) })],
-                       YieldOrReturn
-                         ((false, true), Ident first, (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,40--4,41) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             ArrayOrList
+                               (true,
+                                [Named
+                                   (SynIdent (first, None), false, None,
+                                    (4,12--4,17));
+                                 Named
+                                   (SynIdent (second, None), false, None,
+                                    (4,19--4,25))], (4,9--4,28)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([array], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([int], [], [None]))], [],
+                                      None, true, (4,30--4,39)), (4,30--4,39),
+                                   [], { ColonRange = Some (4,28--4,29) })),
+                             App
+                               (Atomic, false, Ident asyncArray,
+                                Const (Unit, (4,52--4,54)), (4,42--4,54)),
+                             (4,4--4,54), Yes (4,4--4,54),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,40--4,41) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             ListCons
+                               (Named
+                                  (SynIdent (head, None), false, None,
+                                   (5,9--5,13)),
+                                Named
+                                  (SynIdent (tail, None), false, None,
+                                   (5,17--5,21)), (5,9--5,21),
+                                { ColonColonRange = (5,14--5,16) }),
+                             Some
+                               (SynBindingReturnInfo
+                                  (App
+                                     (LongIdent
+                                        (SynLongIdent ([list], [], [None])),
+                                      None,
+                                      [LongIdent
+                                         (SynLongIdent ([string], [], [None]))],
+                                      [], None, true, (5,23--5,34)),
+                                   (5,23--5,34), [],
+                                   { ColonRange = Some (5,21--5,22) })),
+                             App
+                               (Atomic, false, Ident asyncList,
+                                Const (Unit, (5,46--5,48)), (5,37--5,48)),
+                             (5,4--5,48), Yes (5,4--5,48),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,35--5,36) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident first, (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 15.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 15.fs.bsl
index e3ab36d1f96..374bc3be770 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 15.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 15.fs.bsl	
@@ -12,47 +12,49 @@ ImplFile
                     Tuple
                       (false,
                        [LetOrUse
-                          (false, false, true, true,
-                           [SynBinding
-                              (None, Normal, false, false, [], PreXmlDocEmpty,
-                               SynValData
-                                 (None,
-                                  SynValInfo ([], SynArgInfo ([], false, None)),
-                                  None),
-                               Paren
-                                 (Tuple
-                                    (false,
-                                     [Named
-                                        (SynIdent (x, None), false, None,
-                                         (4,10--4,11));
-                                      Named
-                                        (SynIdent (y, None), false, None,
-                                         (4,13--4,14))], [(4,11--4,12)],
-                                     (4,10--4,14)), (4,9--4,15)),
-                               Some
-                                 (SynBindingReturnInfo
-                                    (Tuple
-                                       (false,
-                                        [Type
-                                           (LongIdent
-                                              (SynLongIdent ([int], [], [None])));
-                                         Star (4,21--4,22);
-                                         Type
-                                           (LongIdent
-                                              (SynLongIdent ([int], [], [None])))],
-                                        (4,17--4,26)), (4,17--4,26), [],
-                                     { ColonRange = Some (4,15--4,16) })),
-                               App
-                                 (Atomic, false, Ident asyncInt,
-                                  Const (Unit, (4,37--4,39)), (4,29--4,39)),
-                               (4,4--4,39), Yes (4,4--4,39),
-                               { LeadingKeyword = Let (4,4--4,8)
-                                 InlineKeyword = None
-                                 EqualsRange = Some (4,27--4,28) })],
-                           ImplicitZero (4,39--4,39), (4,4--5,16),
-                           { LetOrUseKeyword = (4,4--4,8)
-                             InKeyword = None
-                             EqualsRange = Some (4,27--4,28) }); Ident y],
+                          { IsRecursive = false
+                            Bindings =
+                             [SynBinding
+                                (None, Normal, false, false, [], PreXmlDocEmpty,
+                                 SynValData
+                                   (None,
+                                    SynValInfo
+                                      ([], SynArgInfo ([], false, None)), None),
+                                 Paren
+                                   (Tuple
+                                      (false,
+                                       [Named
+                                          (SynIdent (x, None), false, None,
+                                           (4,10--4,11));
+                                        Named
+                                          (SynIdent (y, None), false, None,
+                                           (4,13--4,14))], [(4,11--4,12)],
+                                       (4,10--4,14)), (4,9--4,15)),
+                                 Some
+                                   (SynBindingReturnInfo
+                                      (Tuple
+                                         (false,
+                                          [Type
+                                             (LongIdent
+                                                (SynLongIdent
+                                                   ([int], [], [None])));
+                                           Star (4,21--4,22);
+                                           Type
+                                             (LongIdent
+                                                (SynLongIdent
+                                                   ([int], [], [None])))],
+                                          (4,17--4,26)), (4,17--4,26), [],
+                                       { ColonRange = Some (4,15--4,16) })),
+                                 App
+                                   (Atomic, false, Ident asyncInt,
+                                    Const (Unit, (4,37--4,39)), (4,29--4,39)),
+                                 (4,4--4,39), Yes (4,4--4,39),
+                                 { LeadingKeyword = LetBang (4,4--4,8)
+                                   InlineKeyword = None
+                                   EqualsRange = Some (4,27--4,28) })]
+                            Body = ImplicitZero (4,39--4,39)
+                            Range = (4,4--5,16)
+                            Trivia = { InKeyword = None } }; Ident y],
                        [(5,15--5,16)], (4,4--5,18)), (3,6--7,1)), (3,0--7,1)),
               (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 16.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 16.fs.bsl
index 074eaa322f6..050f08f938d 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 16.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 16.fs.bsl	
@@ -10,81 +10,82 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Tuple
-                                (false,
-                                 [Named
-                                    (SynIdent (x, None), false, None,
-                                     (4,10--4,11));
-                                  Named
-                                    (SynIdent (y, None), false, None,
-                                     (4,13--4,14))], [(4,11--4,12)],
-                                 (4,10--4,14)), (4,9--4,15)),
-                           Some
-                             (SynBindingReturnInfo
-                                (Tuple
-                                   (false,
-                                    [Type
-                                       (LongIdent
-                                          (SynLongIdent ([int], [], [None])));
-                                     Star (4,21--4,22);
-                                     Type
-                                       (LongIdent
-                                          (SynLongIdent ([int], [], [None])))],
-                                    (4,17--4,26)), (4,17--4,26), [],
-                                 { ColonRange = Some (4,15--4,16) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,37--4,39)), (4,29--4,39)),
-                           (4,4--4,39), Yes (4,4--4,39),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,27--4,28) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Tuple
-                                (false,
-                                 [Typed
-                                    (Named
-                                       (SynIdent (x, None), false, None,
-                                        (5,10--5,11)),
-                                     LongIdent
-                                       (SynLongIdent ([int], [], [None])),
-                                     (5,10--5,16));
-                                  Typed
-                                    (Named
-                                       (SynIdent (y, None), false, None,
-                                        (5,18--5,19)),
-                                     LongIdent
-                                       (SynLongIdent ([int], [], [None])),
-                                     (5,18--5,24))], [(5,16--5,17)],
-                                 (5,10--5,24)), (5,9--5,25)), None,
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (5,36--5,38)), (5,28--5,38)),
-                           (5,4--5,38), Yes (5,4--5,38),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,26--5,27) })],
-                       YieldOrReturn
-                         ((false, true), Const (Unit, (6,11--6,13)), (6,4--6,13),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,13),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,27--4,28) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Tuple
+                                  (false,
+                                   [Named
+                                      (SynIdent (x, None), false, None,
+                                       (4,10--4,11));
+                                    Named
+                                      (SynIdent (y, None), false, None,
+                                       (4,13--4,14))], [(4,11--4,12)],
+                                   (4,10--4,14)), (4,9--4,15)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (Tuple
+                                     (false,
+                                      [Type
+                                         (LongIdent
+                                            (SynLongIdent ([int], [], [None])));
+                                       Star (4,21--4,22);
+                                       Type
+                                         (LongIdent
+                                            (SynLongIdent ([int], [], [None])))],
+                                      (4,17--4,26)), (4,17--4,26), [],
+                                   { ColonRange = Some (4,15--4,16) })),
+                             App
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,37--4,39)), (4,29--4,39)),
+                             (4,4--4,39), Yes (4,4--4,39),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,27--4,28) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Tuple
+                                  (false,
+                                   [Typed
+                                      (Named
+                                         (SynIdent (x, None), false, None,
+                                          (5,10--5,11)),
+                                       LongIdent
+                                         (SynLongIdent ([int], [], [None])),
+                                       (5,10--5,16));
+                                    Typed
+                                      (Named
+                                         (SynIdent (y, None), false, None,
+                                          (5,18--5,19)),
+                                       LongIdent
+                                         (SynLongIdent ([int], [], [None])),
+                                       (5,18--5,24))], [(5,16--5,17)],
+                                   (5,10--5,24)), (5,9--5,25)), None,
+                             App
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (5,36--5,38)), (5,28--5,38)),
+                             (5,4--5,38), Yes (5,4--5,38),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,26--5,27) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Const (Unit, (6,11--6,13)),
+                            (6,4--6,13), { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,13)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 17.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 17.fs.bsl
index c8267cda094..4bfca2a23fc 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 17.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 17.fs.bsl	
@@ -10,86 +10,87 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Tuple
-                                (false,
-                                 [Named
-                                    (SynIdent (x, None), false, None,
-                                     (4,10--4,11));
-                                  Named
-                                    (SynIdent (y, None), false, None,
-                                     (4,13--4,14))], [(4,11--4,12)],
-                                 (4,10--4,14)), (4,9--4,15)),
-                           Some
-                             (SynBindingReturnInfo
-                                (Tuple
-                                   (false,
-                                    [Type
-                                       (LongIdent
-                                          (SynLongIdent ([int], [], [None])));
-                                     Star (4,21--4,22);
-                                     Type
-                                       (LongIdent
-                                          (SynLongIdent ([int], [], [None])))],
-                                    (4,17--4,26)), (4,17--4,26), [],
-                                 { ColonRange = Some (4,15--4,16) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,37--4,39)), (4,29--4,39)),
-                           (4,4--4,39), Yes (4,4--4,39),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,27--4,28) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Tuple
-                                (false,
-                                 [Named
-                                    (SynIdent (x, None), false, None,
-                                     (5,10--5,11));
-                                  Named
-                                    (SynIdent (y, None), false, None,
-                                     (5,13--5,14))], [(5,11--5,12)],
-                                 (5,10--5,14)), (5,9--5,15)),
-                           Some
-                             (SynBindingReturnInfo
-                                (Tuple
-                                   (false,
-                                    [Type
-                                       (LongIdent
-                                          (SynLongIdent ([int], [], [None])));
-                                     Star (5,21--5,22);
-                                     Type
-                                       (LongIdent
-                                          (SynLongIdent ([int], [], [None])))],
-                                    (5,17--5,26)), (5,17--5,26), [],
-                                 { ColonRange = Some (5,15--5,16) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (5,37--5,39)), (5,29--5,39)),
-                           (5,4--5,39), Yes (5,4--5,39),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,27--5,28) })],
-                       YieldOrReturn
-                         ((false, true), Const (Unit, (6,11--6,13)), (6,4--6,13),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,13),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,27--4,28) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Tuple
+                                  (false,
+                                   [Named
+                                      (SynIdent (x, None), false, None,
+                                       (4,10--4,11));
+                                    Named
+                                      (SynIdent (y, None), false, None,
+                                       (4,13--4,14))], [(4,11--4,12)],
+                                   (4,10--4,14)), (4,9--4,15)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (Tuple
+                                     (false,
+                                      [Type
+                                         (LongIdent
+                                            (SynLongIdent ([int], [], [None])));
+                                       Star (4,21--4,22);
+                                       Type
+                                         (LongIdent
+                                            (SynLongIdent ([int], [], [None])))],
+                                      (4,17--4,26)), (4,17--4,26), [],
+                                   { ColonRange = Some (4,15--4,16) })),
+                             App
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,37--4,39)), (4,29--4,39)),
+                             (4,4--4,39), Yes (4,4--4,39),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,27--4,28) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Tuple
+                                  (false,
+                                   [Named
+                                      (SynIdent (x, None), false, None,
+                                       (5,10--5,11));
+                                    Named
+                                      (SynIdent (y, None), false, None,
+                                       (5,13--5,14))], [(5,11--5,12)],
+                                   (5,10--5,14)), (5,9--5,15)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (Tuple
+                                     (false,
+                                      [Type
+                                         (LongIdent
+                                            (SynLongIdent ([int], [], [None])));
+                                       Star (5,21--5,22);
+                                       Type
+                                         (LongIdent
+                                            (SynLongIdent ([int], [], [None])))],
+                                      (5,17--5,26)), (5,17--5,26), [],
+                                   { ColonRange = Some (5,15--5,16) })),
+                             App
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (5,37--5,39)), (5,29--5,39)),
+                             (5,4--5,39), Yes (5,4--5,39),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,27--5,28) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Const (Unit, (6,11--6,13)),
+                            (6,4--6,13), { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,13)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 18.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 18.fs.bsl
index e6deb827d1a..96300387ee2 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 18.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 18.fs.bsl	
@@ -10,76 +10,77 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, false, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (x, None), false, None,
-                                    (4,10--4,11)),
-                                 Named
-                                   (SynIdent (y, None), false, None,
-                                    (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,19--4,22), [],
-                                 { ColonRange = Some (4,17--4,18) })),
-                           App
-                             (Atomic, false, Ident asyncInt,
-                              Const (Unit, (4,33--4,35)), (4,25--4,35)),
-                           (4,4--4,35), Yes (4,4--4,35),
-                           { LeadingKeyword = Let (4,4--4,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (4,23--4,24) });
-                        SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (As
-                                (Named
-                                   (SynIdent (a, None), false, None,
-                                    (5,10--5,11)),
-                                 Named
-                                   (SynIdent (b, None), false, None,
-                                    (5,15--5,16)), (5,10--5,16)), (5,9--5,17)),
-                           Some
-                             (SynBindingReturnInfo
-                                (FromParseError (5,18--5,18), (5,18--5,18), [],
-                                 { ColonRange = Some (5,17--5,18) })),
-                           App
-                             (Atomic, false, Ident asyncString,
-                              Const (Unit, (5,32--5,34)), (5,21--5,34)),
-                           (5,4--5,34), Yes (5,4--5,34),
-                           { LeadingKeyword = And (5,4--5,8)
-                             InlineKeyword = None
-                             EqualsRange = Some (5,19--5,20) })],
-                       YieldOrReturn
-                         ((false, true),
-                          App
-                            (NonAtomic, false,
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (x, None), false, None,
+                                      (4,10--4,11)),
+                                   Named
+                                     (SynIdent (y, None), false, None,
+                                      (4,15--4,16)), (4,10--4,16)), (4,9--4,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,19--4,22), [],
+                                   { ColonRange = Some (4,17--4,18) })),
                              App
-                               (NonAtomic, true,
-                                LongIdent
-                                  (false,
-                                   SynLongIdent
-                                     ([op_Addition], [],
-                                      [Some (OriginalNotation "+")]), None,
-                                   (6,13--6,14)), Ident x, (6,11--6,14)),
-                             Ident b, (6,11--6,16)), (6,4--6,16),
-                          { YieldOrReturnKeyword = (6,4--6,10) }), (4,4--6,16),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,23--4,24) }), (3,6--7,1)),
-                 (3,0--7,1)), (3,0--7,1))],
+                               (Atomic, false, Ident asyncInt,
+                                Const (Unit, (4,33--4,35)), (4,25--4,35)),
+                             (4,4--4,35), Yes (4,4--4,35),
+                             { LeadingKeyword = LetBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,23--4,24) });
+                          SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (As
+                                  (Named
+                                     (SynIdent (a, None), false, None,
+                                      (5,10--5,11)),
+                                   Named
+                                     (SynIdent (b, None), false, None,
+                                      (5,15--5,16)), (5,10--5,16)), (5,9--5,17)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (FromParseError (5,18--5,18), (5,18--5,18), [],
+                                   { ColonRange = Some (5,17--5,18) })),
+                             App
+                               (Atomic, false, Ident asyncString,
+                                Const (Unit, (5,32--5,34)), (5,21--5,34)),
+                             (5,4--5,34), Yes (5,4--5,34),
+                             { LeadingKeyword = AndBang (5,4--5,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,19--5,20) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true),
+                            App
+                              (NonAtomic, false,
+                               App
+                                 (NonAtomic, true,
+                                  LongIdent
+                                    (false,
+                                     SynLongIdent
+                                       ([op_Addition], [],
+                                        [Some (OriginalNotation "+")]), None,
+                                     (6,13--6,14)), Ident x, (6,11--6,14)),
+                               Ident b, (6,11--6,16)), (6,4--6,16),
+                            { YieldOrReturnKeyword = (6,4--6,10) })
+                        Range = (4,4--6,16)
+                        Trivia = { InKeyword = None } }, (3,6--7,1)), (3,0--7,1)),
+              (3,0--7,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--7,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 19.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 19.fs.bsl
index 9a92b29b73f..c12a5081026 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 19.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed LetBang AndBang 19.fs.bsl	
@@ -10,70 +10,77 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (true, false, true, false,
-                       [SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named (SynIdent (a, None), false, None, (4,12--4,13)),
-                           None, Const (Int32 3, (4,16--4,17)), (4,12--4,13),
-                           Yes (4,4--4,17),
-                           { LeadingKeyword = LetRec ((4,4--4,7), (4,8--4,11))
-                             InlineKeyword = None
-                             EqualsRange = Some (4,14--4,15) });
-                        SynBinding
-                          (None, Normal, false, false, [],
-                           PreXmlDoc ((5,8), FSharp.Compiler.Xml.XmlDocCollector),
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named (SynIdent (b, None), false, None, (5,8--5,9)),
-                           None, Const (Int32 5, (5,12--5,13)), (5,8--5,9),
-                           Yes (5,4--5,13), { LeadingKeyword = And (5,4--5,7)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (5,10--5,11) })],
-                       LetOrUse
-                         (false, false, true, true,
-                          [SynBinding
-                             (None, Normal, false, false, [], PreXmlDocEmpty,
-                              SynValData
-                                (None,
-                                 SynValInfo ([], SynArgInfo ([], false, None)),
-                                 None),
-                              Named
-                                (SynIdent (a, None), false, None, (6,9--6,10)),
-                              None, Const (Int32 3, (6,13--6,14)), (6,4--6,14),
-                              Yes (6,4--6,14),
-                              { LeadingKeyword = Let (6,4--6,8)
-                                InlineKeyword = None
-                                EqualsRange = Some (6,11--6,12) });
-                           SynBinding
-                             (None, Normal, false, false, [], PreXmlDocEmpty,
-                              SynValData
-                                (None,
-                                 SynValInfo ([], SynArgInfo ([], false, None)),
-                                 None),
-                              Named
-                                (SynIdent (b, None), false, None, (7,9--7,10)),
-                              None, Const (Int32 5, (7,13--7,14)), (7,4--7,14),
-                              Yes (7,4--7,14),
-                              { LeadingKeyword = And (7,4--7,8)
-                                InlineKeyword = None
-                                EqualsRange = Some (7,11--7,12) })],
-                          YieldOrReturn
-                            ((false, true), Const (Unit, (8,11--8,13)),
-                             (8,4--8,13), { YieldOrReturnKeyword = (8,4--8,10) }),
-                          (6,4--8,13), { LetOrUseKeyword = (6,4--6,8)
-                                         InKeyword = None
-                                         EqualsRange = Some (6,11--6,12) }),
-                       (4,4--8,13), { LetOrUseKeyword = (4,4--4,11)
-                                      InKeyword = None
-                                      EqualsRange = Some (4,14--4,15) }),
-                    (3,6--9,1)), (3,0--9,1)), (3,0--9,1))],
+                      { IsRecursive = true
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((4,4), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (a, None), false, None, (4,12--4,13)),
+                             None, Const (Int32 3, (4,16--4,17)), (4,12--4,13),
+                             Yes (4,4--4,17),
+                             { LeadingKeyword = LetRec ((4,4--4,7), (4,8--4,11))
+                               InlineKeyword = None
+                               EqualsRange = Some (4,14--4,15) });
+                          SynBinding
+                            (None, Normal, false, false, [],
+                             PreXmlDoc ((5,8), FSharp.Compiler.Xml.XmlDocCollector),
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named (SynIdent (b, None), false, None, (5,8--5,9)),
+                             None, Const (Int32 5, (5,12--5,13)), (5,8--5,9),
+                             Yes (5,4--5,13),
+                             { LeadingKeyword = And (5,4--5,7)
+                               InlineKeyword = None
+                               EqualsRange = Some (5,10--5,11) })]
+                        Body =
+                         LetOrUse
+                           { IsRecursive = false
+                             Bindings =
+                              [SynBinding
+                                 (None, Normal, false, false, [], PreXmlDocEmpty,
+                                  SynValData
+                                    (None,
+                                     SynValInfo
+                                       ([], SynArgInfo ([], false, None)), None),
+                                  Named
+                                    (SynIdent (a, None), false, None,
+                                     (6,9--6,10)), None,
+                                  Const (Int32 3, (6,13--6,14)), (6,4--6,14),
+                                  Yes (6,4--6,14),
+                                  { LeadingKeyword = LetBang (6,4--6,8)
+                                    InlineKeyword = None
+                                    EqualsRange = Some (6,11--6,12) });
+                               SynBinding
+                                 (None, Normal, false, false, [], PreXmlDocEmpty,
+                                  SynValData
+                                    (None,
+                                     SynValInfo
+                                       ([], SynArgInfo ([], false, None)), None),
+                                  Named
+                                    (SynIdent (b, None), false, None,
+                                     (7,9--7,10)), None,
+                                  Const (Int32 5, (7,13--7,14)), (7,4--7,14),
+                                  Yes (7,4--7,14),
+                                  { LeadingKeyword = AndBang (7,4--7,8)
+                                    InlineKeyword = None
+                                    EqualsRange = Some (7,11--7,12) })]
+                             Body =
+                              YieldOrReturn
+                                ((false, true), Const (Unit, (8,11--8,13)),
+                                 (8,4--8,13),
+                                 { YieldOrReturnKeyword = (8,4--8,10) })
+                             Range = (6,4--8,13)
+                             Trivia = { InKeyword = None } }
+                        Range = (4,4--8,13)
+                        Trivia = { InKeyword = None } }, (3,6--9,1)), (3,0--9,1)),
+              (3,0--9,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--9,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed UseBang 01.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed UseBang 01.fs.bsl
index e37cc274965..e890d891b15 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed UseBang 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed UseBang 01.fs.bsl	
@@ -9,39 +9,42 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, true, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (res, None), false, None, (4,9--4,12)),
-                           Some
-                             (SynBindingReturnInfo
-                                (LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,14--4,17), [],
-                                 { ColonRange = Some (4,12--4,13) })),
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,35--4,36)),
-                                    (4,28--4,36),
-                                    { YieldOrReturnKeyword = (4,28--4,34) }),
-                                 (4,26--4,38)), (4,20--4,38)), (4,4--4,38),
-                           Yes (4,4--4,38), { LeadingKeyword = Use (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,18--4,19) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (5,4--5,14),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (4,4--5,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,18--4,19) }), (3,6--6,1)),
-                 (3,0--6,1)), (3,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (res, None), false, None, (4,9--4,12)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,14--4,17), [],
+                                   { ColonRange = Some (4,12--4,13) })),
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,35--4,36)),
+                                      (4,28--4,36),
+                                      { YieldOrReturnKeyword = (4,28--4,34) }),
+                                   (4,26--4,38)), (4,20--4,38)), (4,4--4,38),
+                             Yes (4,4--4,38),
+                             { LeadingKeyword = UseBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,18--4,19) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (5,4--5,14),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (4,4--5,14)
+                        Trivia = { InKeyword = None } }, (3,6--6,1)), (3,0--6,1)),
+              (3,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed UseBang 02.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed UseBang 02.fs.bsl
index 7289171327f..4ab2cb82cd7 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed UseBang 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed UseBang 02.fs.bsl	
@@ -9,39 +9,42 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, true, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Paren
-                             (Typed
-                                (Named
-                                   (SynIdent (res, None), false, None,
-                                    (4,10--4,13)),
-                                 LongIdent (SynLongIdent ([int], [], [None])),
-                                 (4,10--4,18)), (4,9--4,19)), None,
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,37--4,38)),
-                                    (4,30--4,38),
-                                    { YieldOrReturnKeyword = (4,30--4,36) }),
-                                 (4,28--4,40)), (4,22--4,40)), (4,4--4,40),
-                           Yes (4,4--4,40), { LeadingKeyword = Use (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,20--4,21) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (5,4--5,14),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (4,4--5,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,20--4,21) }), (3,6--6,1)),
-                 (3,0--6,1)), (3,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Paren
+                               (Typed
+                                  (Named
+                                     (SynIdent (res, None), false, None,
+                                      (4,10--4,13)),
+                                   LongIdent (SynLongIdent ([int], [], [None])),
+                                   (4,10--4,18)), (4,9--4,19)), None,
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,37--4,38)),
+                                      (4,30--4,38),
+                                      { YieldOrReturnKeyword = (4,30--4,36) }),
+                                   (4,28--4,40)), (4,22--4,40)), (4,4--4,40),
+                             Yes (4,4--4,40),
+                             { LeadingKeyword = UseBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,20--4,21) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (5,4--5,14),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (4,4--5,14)
+                        Trivia = { InKeyword = None } }, (3,6--6,1)), (3,0--6,1)),
+              (3,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed UseBang 03.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed UseBang 03.fs.bsl
index b60bc19b2ff..84acda1bbff 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed UseBang 03.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed UseBang 03.fs.bsl	
@@ -5,61 +5,64 @@ ImplFile
          ([Module], false, NamedModule,
           [Expr
              (LetOrUse
-                (false, true, true, true,
-                 [SynBinding
-                    (None, Normal, false, false, [], PreXmlDocEmpty,
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None),
-                     Named (SynIdent (x, None), false, None, (3,5--3,6)),
-                     Some
-                       (SynBindingReturnInfo
-                          (LongIdent (SynLongIdent ([int], [], [None])),
-                           (3,7--3,10), [], { ColonRange = Some (3,6--3,7) })),
-                     App
-                       (NonAtomic, false, Ident async,
-                        ComputationExpr
-                          (false,
-                           YieldOrReturn
-                             ((false, true), Const (Int32 1, (3,28--3,29)),
-                              (3,21--3,29),
-                              { YieldOrReturnKeyword = (3,21--3,27) }),
-                           (3,19--3,31)), (3,13--3,31)), (3,0--3,31),
-                     Yes (3,0--3,31), { LeadingKeyword = Use (3,0--3,4)
-                                        InlineKeyword = None
-                                        EqualsRange = Some (3,11--3,12) })],
-                 LetOrUse
-                   (false, true, true, true,
-                    [SynBinding
-                       (None, Normal, false, false, [], PreXmlDocEmpty,
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Paren
-                          (Typed
-                             (Named
-                                (SynIdent (y, None), false, None, (4,6--4,7)),
-                              LongIdent (SynLongIdent ([int], [], [None])),
-                              (4,6--4,11)), (4,5--4,12)), None,
-                        App
-                          (NonAtomic, false, Ident async,
-                           ComputationExpr
-                             (false,
-                              YieldOrReturn
-                                ((false, true), Const (Int32 2, (4,30--4,31)),
-                                 (4,23--4,31),
-                                 { YieldOrReturnKeyword = (4,23--4,29) }),
-                              (4,21--4,33)), (4,15--4,33)), (4,0--4,33),
-                        Yes (4,0--4,33), { LeadingKeyword = Use (4,0--4,4)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (4,13--4,14) })],
-                    ImplicitZero (4,33--4,33), (4,0--4,33),
-                    { LetOrUseKeyword = (4,0--4,4)
-                      InKeyword = None
-                      EqualsRange = Some (4,13--4,14) }), (3,0--4,33),
-                 { LetOrUseKeyword = (3,0--3,4)
-                   InKeyword = None
-                   EqualsRange = Some (3,11--3,12) }), (3,0--4,33))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [], PreXmlDocEmpty,
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None),
+                       Named (SynIdent (x, None), false, None, (3,5--3,6)),
+                       Some
+                         (SynBindingReturnInfo
+                            (LongIdent (SynLongIdent ([int], [], [None])),
+                             (3,7--3,10), [], { ColonRange = Some (3,6--3,7) })),
+                       App
+                         (NonAtomic, false, Ident async,
+                          ComputationExpr
+                            (false,
+                             YieldOrReturn
+                               ((false, true), Const (Int32 1, (3,28--3,29)),
+                                (3,21--3,29),
+                                { YieldOrReturnKeyword = (3,21--3,27) }),
+                             (3,19--3,31)), (3,13--3,31)), (3,0--3,31),
+                       Yes (3,0--3,31), { LeadingKeyword = UseBang (3,0--3,4)
+                                          InlineKeyword = None
+                                          EqualsRange = Some (3,11--3,12) })]
+                  Body =
+                   LetOrUse
+                     { IsRecursive = false
+                       Bindings =
+                        [SynBinding
+                           (None, Normal, false, false, [], PreXmlDocEmpty,
+                            SynValData
+                              (None,
+                               SynValInfo ([], SynArgInfo ([], false, None)),
+                               None),
+                            Paren
+                              (Typed
+                                 (Named
+                                    (SynIdent (y, None), false, None, (4,6--4,7)),
+                                  LongIdent (SynLongIdent ([int], [], [None])),
+                                  (4,6--4,11)), (4,5--4,12)), None,
+                            App
+                              (NonAtomic, false, Ident async,
+                               ComputationExpr
+                                 (false,
+                                  YieldOrReturn
+                                    ((false, true),
+                                     Const (Int32 2, (4,30--4,31)), (4,23--4,31),
+                                     { YieldOrReturnKeyword = (4,23--4,29) }),
+                                  (4,21--4,33)), (4,15--4,33)), (4,0--4,33),
+                            Yes (4,0--4,33),
+                            { LeadingKeyword = UseBang (4,0--4,4)
+                              InlineKeyword = None
+                              EqualsRange = Some (4,13--4,14) })]
+                       Body = ImplicitZero (4,33--4,33)
+                       Range = (4,0--4,33)
+                       Trivia = { InKeyword = None } }
+                  Range = (3,0--4,33)
+                  Trivia = { InKeyword = None } }, (3,0--4,33))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,33), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed UseBang 04.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed UseBang 04.fs.bsl
index c69ff41b570..dc98ea19353 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed UseBang 04.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed UseBang 04.fs.bsl	
@@ -5,59 +5,62 @@ ImplFile
          ([Module], false, NamedModule,
           [Expr
              (LetOrUse
-                (false, true, true, true,
-                 [SynBinding
-                    (None, Normal, false, false, [], PreXmlDocEmpty,
-                     SynValData
-                       (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                        None), Wild (3,5--3,6),
-                     Some
-                       (SynBindingReturnInfo
-                          (LongIdent (SynLongIdent ([int], [], [None])),
-                           (3,7--3,10), [], { ColonRange = Some (3,6--3,7) })),
-                     App
-                       (NonAtomic, false, Ident async,
-                        ComputationExpr
-                          (false,
-                           YieldOrReturn
-                             ((false, true), Const (Int32 1, (3,28--3,29)),
-                              (3,21--3,29),
-                              { YieldOrReturnKeyword = (3,21--3,27) }),
-                           (3,19--3,31)), (3,13--3,31)), (3,0--3,31),
-                     Yes (3,0--3,31), { LeadingKeyword = Use (3,0--3,4)
-                                        InlineKeyword = None
-                                        EqualsRange = Some (3,11--3,12) })],
-                 LetOrUse
-                   (false, true, true, true,
-                    [SynBinding
-                       (None, Normal, false, false, [], PreXmlDocEmpty,
-                        SynValData
-                          (None, SynValInfo ([], SynArgInfo ([], false, None)),
-                           None),
-                        Paren
-                          (Typed
-                             (Wild (4,6--4,7),
-                              LongIdent (SynLongIdent ([int], [], [None])),
-                              (4,6--4,11)), (4,5--4,12)), None,
-                        App
-                          (NonAtomic, false, Ident async,
-                           ComputationExpr
-                             (false,
-                              YieldOrReturn
-                                ((false, true), Const (Int32 2, (4,30--4,31)),
-                                 (4,23--4,31),
-                                 { YieldOrReturnKeyword = (4,23--4,29) }),
-                              (4,21--4,33)), (4,15--4,33)), (4,0--4,33),
-                        Yes (4,0--4,33), { LeadingKeyword = Use (4,0--4,4)
-                                           InlineKeyword = None
-                                           EqualsRange = Some (4,13--4,14) })],
-                    ImplicitZero (4,33--4,33), (4,0--4,33),
-                    { LetOrUseKeyword = (4,0--4,4)
-                      InKeyword = None
-                      EqualsRange = Some (4,13--4,14) }), (3,0--4,33),
-                 { LetOrUseKeyword = (3,0--3,4)
-                   InKeyword = None
-                   EqualsRange = Some (3,11--3,12) }), (3,0--4,33))],
+                { IsRecursive = false
+                  Bindings =
+                   [SynBinding
+                      (None, Normal, false, false, [], PreXmlDocEmpty,
+                       SynValData
+                         (None, SynValInfo ([], SynArgInfo ([], false, None)),
+                          None), Wild (3,5--3,6),
+                       Some
+                         (SynBindingReturnInfo
+                            (LongIdent (SynLongIdent ([int], [], [None])),
+                             (3,7--3,10), [], { ColonRange = Some (3,6--3,7) })),
+                       App
+                         (NonAtomic, false, Ident async,
+                          ComputationExpr
+                            (false,
+                             YieldOrReturn
+                               ((false, true), Const (Int32 1, (3,28--3,29)),
+                                (3,21--3,29),
+                                { YieldOrReturnKeyword = (3,21--3,27) }),
+                             (3,19--3,31)), (3,13--3,31)), (3,0--3,31),
+                       Yes (3,0--3,31), { LeadingKeyword = UseBang (3,0--3,4)
+                                          InlineKeyword = None
+                                          EqualsRange = Some (3,11--3,12) })]
+                  Body =
+                   LetOrUse
+                     { IsRecursive = false
+                       Bindings =
+                        [SynBinding
+                           (None, Normal, false, false, [], PreXmlDocEmpty,
+                            SynValData
+                              (None,
+                               SynValInfo ([], SynArgInfo ([], false, None)),
+                               None),
+                            Paren
+                              (Typed
+                                 (Wild (4,6--4,7),
+                                  LongIdent (SynLongIdent ([int], [], [None])),
+                                  (4,6--4,11)), (4,5--4,12)), None,
+                            App
+                              (NonAtomic, false, Ident async,
+                               ComputationExpr
+                                 (false,
+                                  YieldOrReturn
+                                    ((false, true),
+                                     Const (Int32 2, (4,30--4,31)), (4,23--4,31),
+                                     { YieldOrReturnKeyword = (4,23--4,29) }),
+                                  (4,21--4,33)), (4,15--4,33)), (4,0--4,33),
+                            Yes (4,0--4,33),
+                            { LeadingKeyword = UseBang (4,0--4,4)
+                              InlineKeyword = None
+                              EqualsRange = Some (4,13--4,14) })]
+                       Body = ImplicitZero (4,33--4,33)
+                       Range = (4,0--4,33)
+                       Trivia = { InKeyword = None } }
+                  Range = (3,0--4,33)
+                  Trivia = { InKeyword = None } }, (3,0--4,33))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--4,33), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/SynType/Typed UseBang 05.fs.bsl b/tests/service/data/SyntaxTree/SynType/Typed UseBang 05.fs.bsl
index 945d32adab2..2ac1878b1e7 100644
--- a/tests/service/data/SyntaxTree/SynType/Typed UseBang 05.fs.bsl	
+++ b/tests/service/data/SyntaxTree/SynType/Typed UseBang 05.fs.bsl	
@@ -9,38 +9,41 @@ ImplFile
                  ComputationExpr
                    (false,
                     LetOrUse
-                      (false, true, true, true,
-                       [SynBinding
-                          (None, Normal, false, false, [], PreXmlDocEmpty,
-                           SynValData
-                             (None,
-                              SynValInfo ([], SynArgInfo ([], false, None)),
-                              None),
-                           Named
-                             (SynIdent (res, None), false, None, (4,9--4,12)),
-                           Some
-                             (SynBindingReturnInfo
-                                (FromParseError (4,13--4,13), (4,13--4,13), [],
-                                 { ColonRange = Some (4,12--4,13) })),
-                           App
-                             (NonAtomic, false, Ident async,
-                              ComputationExpr
-                                (false,
-                                 YieldOrReturn
-                                   ((false, true), Const (Int32 1, (4,31--4,32)),
-                                    (4,24--4,32),
-                                    { YieldOrReturnKeyword = (4,24--4,30) }),
-                                 (4,22--4,34)), (4,16--4,34)), (4,4--4,34),
-                           Yes (4,4--4,34), { LeadingKeyword = Use (4,4--4,8)
-                                              InlineKeyword = None
-                                              EqualsRange = Some (4,14--4,15) })],
-                       YieldOrReturn
-                         ((false, true), Ident res, (5,4--5,14),
-                          { YieldOrReturnKeyword = (5,4--5,10) }), (4,4--5,14),
-                       { LetOrUseKeyword = (4,4--4,8)
-                         InKeyword = None
-                         EqualsRange = Some (4,14--4,15) }), (3,6--6,1)),
-                 (3,0--6,1)), (3,0--6,1))],
+                      { IsRecursive = false
+                        Bindings =
+                         [SynBinding
+                            (None, Normal, false, false, [], PreXmlDocEmpty,
+                             SynValData
+                               (None,
+                                SynValInfo ([], SynArgInfo ([], false, None)),
+                                None),
+                             Named
+                               (SynIdent (res, None), false, None, (4,9--4,12)),
+                             Some
+                               (SynBindingReturnInfo
+                                  (FromParseError (4,13--4,13), (4,13--4,13), [],
+                                   { ColonRange = Some (4,12--4,13) })),
+                             App
+                               (NonAtomic, false, Ident async,
+                                ComputationExpr
+                                  (false,
+                                   YieldOrReturn
+                                     ((false, true),
+                                      Const (Int32 1, (4,31--4,32)),
+                                      (4,24--4,32),
+                                      { YieldOrReturnKeyword = (4,24--4,30) }),
+                                   (4,22--4,34)), (4,16--4,34)), (4,4--4,34),
+                             Yes (4,4--4,34),
+                             { LeadingKeyword = UseBang (4,4--4,8)
+                               InlineKeyword = None
+                               EqualsRange = Some (4,14--4,15) })]
+                        Body =
+                         YieldOrReturn
+                           ((false, true), Ident res, (5,4--5,14),
+                            { YieldOrReturnKeyword = (5,4--5,10) })
+                        Range = (4,4--5,14)
+                        Trivia = { InKeyword = None } }, (3,6--6,1)), (3,0--6,1)),
+              (3,0--6,1))],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--6,1), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Deeply Indented Type 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Deeply Indented Type 01.fs.bsl
index 10723d4529c..a5d38e13ca0 100644
--- a/tests/service/data/SyntaxTree/Type/Deeply Indented Type 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Deeply Indented Type 01.fs.bsl	
@@ -58,9 +58,9 @@ ImplFile
                               { LeadingKeyword = Let (9,16--9,19)
                                 InlineKeyword = None
                                 EqualsRange = Some (9,22--9,23) })],
-                          (9,16--9,25))], false, (8,12--9,25),
-                      { ModuleKeyword = Some (8,12--8,18)
-                        EqualsRange = Some (8,32--8,33) });
+                          (9,16--9,25), { InKeyword = None })], false,
+                      (8,12--9,25), { ModuleKeyword = Some (8,12--8,18)
+                                      EqualsRange = Some (8,32--8,33) });
                    Exception
                      (SynExceptionDefn
                         (SynExceptionDefnRepr
diff --git a/tests/service/data/SyntaxTree/Type/Inline IL With Type 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Inline IL With Type 01.fs.bsl
index 195ff908d8f..357f581f362 100644
--- a/tests/service/data/SyntaxTree/Type/Inline IL With Type 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Inline IL With Type 01.fs.bsl	
@@ -33,7 +33,7 @@ ImplFile
                   (3,11--3,25), NoneAtLet, { LeadingKeyword = Let (3,0--3,3)
                                              InlineKeyword = Some (3,4--3,10)
                                              EqualsRange = Some (3,31--3,32) })],
-              (3,0--4,26));
+              (3,0--4,26), { InKeyword = None });
            Types
              ([SynTypeDefn
                  (SynComponentInfo
diff --git a/tests/service/data/SyntaxTree/Type/Keywords In Strings 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Keywords In Strings 01.fs.bsl
index f42d3f23ed7..de2137341ef 100644
--- a/tests/service/data/SyntaxTree/Type/Keywords In Strings 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Keywords In Strings 01.fs.bsl	
@@ -31,7 +31,7 @@ ImplFile
                              { LeadingKeyword = Let (5,4--5,7)
                                InlineKeyword = None
                                EqualsRange = Some (5,16--5,17) })], false, false,
-                         (5,4--5,44));
+                         (5,4--5,44), { InKeyword = None });
                       Member
                         (SynBinding
                            (None, Normal, false, false, [],
diff --git a/tests/service/data/SyntaxTree/Type/Let Inside Class 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Let Inside Class 01.fs.bsl
index b677479348f..c7eddf540a5 100644
--- a/tests/service/data/SyntaxTree/Type/Let Inside Class 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Let Inside Class 01.fs.bsl	
@@ -31,7 +31,7 @@ ImplFile
                              { LeadingKeyword = Let (5,4--5,7)
                                InlineKeyword = None
                                EqualsRange = Some (5,21--5,22) })], false, false,
-                         (5,4--5,25));
+                         (5,4--5,25), { InKeyword = None });
                       Member
                         (SynBinding
                            (None, Normal, false, false, [],
diff --git a/tests/service/data/SyntaxTree/Type/Module After Do Binding 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module After Do Binding 01.fs.bsl
index fa44a076bea..feda58cda85 100644
--- a/tests/service/data/SyntaxTree/Type/Module After Do Binding 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module After Do Binding 01.fs.bsl	
@@ -32,7 +32,7 @@ ImplFile
                              NoneAtDo, { LeadingKeyword = Do (5,4--5,6)
                                          InlineKeyword = None
                                          EqualsRange = None })], false, false,
-                         (5,4--5,29))], (5,4--5,29)), [],
+                         (5,4--5,29), { InKeyword = None })], (5,4--5,29)), [],
                   Some
                     (ImplicitCtor
                        (None, [], Const (Unit, (4,12--4,14)), None,
@@ -59,7 +59,7 @@ ImplFile
                       Yes (7,8--7,23), { LeadingKeyword = Let (7,8--7,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (7,19--7,20) })],
-                  (7,8--7,23))], false, (6,4--7,23),
+                  (7,8--7,23), { InKeyword = None })], false, (6,4--7,23),
               { ModuleKeyword = Some (6,4--6,10)
                 EqualsRange = Some (6,13--6,14) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module After Inherit 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module After Inherit 01.fs.bsl
index 79d4155fcbd..644860bccd4 100644
--- a/tests/service/data/SyntaxTree/Type/Module After Inherit 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module After Inherit 01.fs.bsl	
@@ -66,7 +66,7 @@ ImplFile
                       Yes (10,8--10,17), { LeadingKeyword = Let (10,8--10,11)
                                            InlineKeyword = None
                                            EqualsRange = Some (10,14--10,15) })],
-                  (10,8--10,17))], false, (9,4--10,17),
+                  (10,8--10,17), { InKeyword = None })], false, (9,4--10,17),
               { ModuleKeyword = Some (9,4--9,10)
                 EqualsRange = Some (9,25--9,26) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module After Members 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module After Members 01.fs.bsl
index bb9dc70cb4a..28b3548fe66 100644
--- a/tests/service/data/SyntaxTree/Type/Module After Members 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module After Members 01.fs.bsl	
@@ -97,7 +97,7 @@ ImplFile
                       Yes (9,8--9,23), { LeadingKeyword = Let (9,8--9,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (9,19--9,20) })],
-                  (9,8--9,23))], false, (8,4--9,23),
+                  (9,8--9,23), { InKeyword = None })], false, (8,4--9,23),
               { ModuleKeyword = Some (8,4--8,10)
                 EqualsRange = Some (8,25--8,26) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module After Static Members 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module After Static Members 01.fs.bsl
index 9cafebb4709..15115ecfedc 100644
--- a/tests/service/data/SyntaxTree/Type/Module After Static Members 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module After Static Members 01.fs.bsl	
@@ -60,7 +60,7 @@ ImplFile
                       Yes (8,8--8,17), { LeadingKeyword = Let (8,8--8,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (8,14--8,15) })],
-                  (8,8--8,17))], false, (7,4--8,17),
+                  (8,8--8,17), { InKeyword = None })], false, (7,4--8,17),
               { ModuleKeyword = Some (7,4--7,10)
                 EqualsRange = Some (7,25--7,26) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module And Exception Interleaved With Members 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module And Exception Interleaved With Members 01.fs.bsl
index 807b6497ad1..8f92eb2c87b 100644
--- a/tests/service/data/SyntaxTree/Type/Module And Exception Interleaved With Members 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module And Exception Interleaved With Members 01.fs.bsl	
@@ -57,7 +57,7 @@ ImplFile
                       Yes (7,8--7,17), { LeadingKeyword = Let (7,8--7,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (7,14--7,15) })],
-                  (7,8--7,17))], false, (6,4--7,17),
+                  (7,8--7,17), { InKeyword = None })], false, (6,4--7,17),
               { ModuleKeyword = Some (6,4--6,10)
                 EqualsRange = Some (6,14--6,15) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module And Type After Do Binding 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module And Type After Do Binding 01.fs.bsl
index bb3cb97c749..6e7606cc734 100644
--- a/tests/service/data/SyntaxTree/Type/Module And Type After Do Binding 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module And Type After Do Binding 01.fs.bsl	
@@ -31,7 +31,7 @@ ImplFile
                              NoneAtDo, { LeadingKeyword = Do (5,4--5,6)
                                          InlineKeyword = None
                                          EqualsRange = None })], false, false,
-                         (5,4--6,22))], (5,4--6,22)), [],
+                         (5,4--6,22), { InKeyword = None })], (5,4--6,22)), [],
                   Some
                     (ImplicitCtor
                        (None, [], Const (Unit, (4,16--4,18)), None,
@@ -71,7 +71,7 @@ ImplFile
                       Yes (11,8--11,17), { LeadingKeyword = Let (11,8--11,11)
                                            InlineKeyword = None
                                            EqualsRange = Some (11,14--11,15) })],
-                  (11,8--11,17))], false, (10,4--11,17),
+                  (11,8--11,17), { InKeyword = None })], false, (10,4--11,17),
               { ModuleKeyword = Some (10,4--10,10)
                 EqualsRange = Some (10,26--10,27) });
            Open
diff --git a/tests/service/data/SyntaxTree/Type/Module And Type Inside Type 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module And Type Inside Type 01.fs.bsl
index e111610ed72..8a885013e07 100644
--- a/tests/service/data/SyntaxTree/Type/Module And Type Inside Type 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module And Type Inside Type 01.fs.bsl	
@@ -32,7 +32,7 @@ ImplFile
                       Yes (6,8--6,23), { LeadingKeyword = Let (6,8--6,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (6,19--6,20) })],
-                  (6,8--6,23))], false, (5,4--6,23),
+                  (6,8--6,23), { InKeyword = None })], false, (5,4--6,23),
               { ModuleKeyword = Some (5,4--5,10)
                 EqualsRange = Some (5,25--5,26) });
            Types
diff --git a/tests/service/data/SyntaxTree/Type/Module At Module Level 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module At Module Level 01.fs.bsl
index 7f34575084d..64f3e9a1f48 100644
--- a/tests/service/data/SyntaxTree/Type/Module At Module Level 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module At Module Level 01.fs.bsl	
@@ -59,7 +59,7 @@ ImplFile
                       Yes (8,4--8,14), { LeadingKeyword = Let (8,4--8,7)
                                          InlineKeyword = None
                                          EqualsRange = Some (8,10--8,11) })],
-                  (8,4--8,14))], false, (7,0--8,14),
+                  (8,4--8,14), { InKeyword = None })], false, (7,0--8,14),
               { ModuleKeyword = Some (7,0--7,6)
                 EqualsRange = Some (7,19--7,20) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module At Type Column 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module At Type Column 01.fs.bsl
index 9a0f25f37fd..c8750dbc0a7 100644
--- a/tests/service/data/SyntaxTree/Type/Module At Type Column 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module At Type Column 01.fs.bsl	
@@ -59,9 +59,10 @@ ImplFile
                       Const (Int32 1, (8,12--8,13)), (8,8--8,9), Yes (8,4--8,13),
                       { LeadingKeyword = Let (8,4--8,7)
                         InlineKeyword = None
-                        EqualsRange = Some (8,10--8,11) })], (8,4--8,13))],
-              false, (7,0--8,13), { ModuleKeyword = Some (7,0--7,6)
-                                    EqualsRange = Some (7,9--7,10) })],
+                        EqualsRange = Some (8,10--8,11) })], (8,4--8,13),
+                  { InKeyword = None })], false, (7,0--8,13),
+              { ModuleKeyword = Some (7,0--7,6)
+                EqualsRange = Some (7,9--7,10) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--8,13), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Between Constructors 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Between Constructors 01.fs.bsl
index 5034df6344b..def37df2059 100644
--- a/tests/service/data/SyntaxTree/Type/Module Between Constructors 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Between Constructors 01.fs.bsl	
@@ -83,7 +83,7 @@ ImplFile
                       Yes (8,8--8,17), { LeadingKeyword = Let (8,8--8,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (8,14--8,15) })],
-                  (8,8--8,17))], false, (7,4--8,17),
+                  (8,8--8,17), { InKeyword = None })], false, (7,4--8,17),
               { ModuleKeyword = Some (7,4--7,10)
                 EqualsRange = Some (7,25--7,26) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Class 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Class 01.fs.bsl
index 61191bc287b..da0eeb70c26 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Class 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Class 01.fs.bsl	
@@ -72,9 +72,10 @@ ImplFile
                       (7,12--7,16), NoneAtLet,
                       { LeadingKeyword = Let (7,8--7,11)
                         InlineKeyword = None
-                        EqualsRange = Some (7,17--7,18) })], (7,8--7,21))],
-              false, (6,4--7,21), { ModuleKeyword = Some (6,4--6,10)
-                                    EqualsRange = Some (6,14--6,15) })],
+                        EqualsRange = Some (7,17--7,18) })], (7,8--7,21),
+                  { InKeyword = None })], false, (6,4--7,21),
+              { ModuleKeyword = Some (6,4--6,10)
+                EqualsRange = Some (6,14--6,15) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--7,21), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Class With Constructor 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Class With Constructor 01.fs.bsl
index b343a4bfd88..f61b8d0da80 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Class With Constructor 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Class With Constructor 01.fs.bsl	
@@ -54,7 +54,7 @@ ImplFile
                       Yes (6,8--6,23), { LeadingKeyword = Let (6,8--6,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (6,19--6,20) })],
-                  (6,8--6,23))], false, (5,4--6,23),
+                  (6,8--6,23), { InKeyword = None })], false, (5,4--6,23),
               { ModuleKeyword = Some (5,4--5,10)
                 EqualsRange = Some (5,26--5,27) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Delegate 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Delegate 01.fs.bsl
index 02ce751defb..89330c2e3c9 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Delegate 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Delegate 01.fs.bsl	
@@ -81,7 +81,7 @@ ImplFile
                       Yes (6,8--6,17), { LeadingKeyword = Let (6,8--6,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (6,14--6,15) })],
-                  (6,8--6,17))], false, (5,4--6,17),
+                  (6,8--6,17), { InKeyword = None })], false, (5,4--6,17),
               { ModuleKeyword = Some (5,4--5,10)
                 EqualsRange = Some (5,25--5,26) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Interface 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Interface 01.fs.bsl
index 4894de15039..25a1e2ee23b 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Interface 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Interface 01.fs.bsl	
@@ -59,9 +59,10 @@ ImplFile
                       (7,12--7,16), NoneAtLet,
                       { LeadingKeyword = Let (7,8--7,11)
                         InlineKeyword = None
-                        EqualsRange = Some (7,17--7,18) })], (7,8--7,21))],
-              false, (6,4--7,21), { ModuleKeyword = Some (6,4--6,10)
-                                    EqualsRange = Some (6,13--6,14) })],
+                        EqualsRange = Some (7,17--7,18) })], (7,8--7,21),
+                  { InKeyword = None })], false, (6,4--7,21),
+              { ModuleKeyword = Some (6,4--6,10)
+                EqualsRange = Some (6,13--6,14) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--7,21), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Nested Type 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Nested Type 01.fs.bsl
index fa6bc697236..69502f842e4 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Nested Type 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Nested Type 01.fs.bsl	
@@ -53,13 +53,13 @@ ImplFile
                               { LeadingKeyword = Let (9,16--9,19)
                                 InlineKeyword = None
                                 EqualsRange = Some (9,22--9,23) })],
-                          (9,16--9,25))], false, (8,12--9,25),
-                      { ModuleKeyword = Some (8,12--8,18)
-                        EqualsRange = Some (8,33--8,34) })], false, (5,4--9,25),
-                  { ModuleKeyword = Some (5,4--5,10)
-                    EqualsRange = Some (5,18--5,19) })], false, (4,0--9,25),
-              { ModuleKeyword = Some (4,0--4,6)
-                EqualsRange = Some (4,14--4,15) })],
+                          (9,16--9,25), { InKeyword = None })], false,
+                      (8,12--9,25), { ModuleKeyword = Some (8,12--8,18)
+                                      EqualsRange = Some (8,33--8,34) })], false,
+                  (5,4--9,25), { ModuleKeyword = Some (5,4--5,10)
+                                 EqualsRange = Some (5,18--5,19) })], false,
+              (4,0--9,25), { ModuleKeyword = Some (4,0--4,6)
+                             EqualsRange = Some (4,14--4,15) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--9,25), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Record 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Record 01.fs.bsl
index 51daf2093d3..49bb21bfb20 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Record 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Record 01.fs.bsl	
@@ -43,9 +43,10 @@ ImplFile
                       (7,12--7,16), NoneAtLet,
                       { LeadingKeyword = Let (7,8--7,11)
                         InlineKeyword = None
-                        EqualsRange = Some (7,17--7,18) })], (7,8--7,21))],
-              false, (6,4--7,21), { ModuleKeyword = Some (6,4--6,10)
-                                    EqualsRange = Some (6,14--6,15) })],
+                        EqualsRange = Some (7,17--7,18) })], (7,8--7,21),
+                  { InKeyword = None })], false, (6,4--7,21),
+              { ModuleKeyword = Some (6,4--6,10)
+                EqualsRange = Some (6,14--6,15) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--7,21), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Inside Union 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Inside Union 01.fs.bsl
index c49a40c24b3..5b239279ff4 100644
--- a/tests/service/data/SyntaxTree/Type/Module Inside Union 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Inside Union 01.fs.bsl	
@@ -45,9 +45,10 @@ ImplFile
                       (8,12--8,16), NoneAtLet,
                       { LeadingKeyword = Let (8,8--8,11)
                         InlineKeyword = None
-                        EqualsRange = Some (8,17--8,18) })], (8,8--8,21))],
-              false, (7,4--8,21), { ModuleKeyword = Some (7,4--7,10)
-                                    EqualsRange = Some (7,14--7,15) })],
+                        EqualsRange = Some (8,17--8,18) })], (8,8--8,21),
+                  { InKeyword = None })], false, (7,4--8,21),
+              { ModuleKeyword = Some (7,4--7,10)
+                EqualsRange = Some (7,14--7,15) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--8,21), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Less Indented 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Less Indented 01.fs.bsl
index 7471af68c2f..f8a33abb0ef 100644
--- a/tests/service/data/SyntaxTree/Type/Module Less Indented 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Less Indented 01.fs.bsl	
@@ -58,9 +58,10 @@ ImplFile
                       Const (Int32 1, (8,12--8,13)), (8,8--8,9), Yes (8,4--8,13),
                       { LeadingKeyword = Let (8,4--8,7)
                         InlineKeyword = None
-                        EqualsRange = Some (8,10--8,11) })], (8,4--8,13))],
-              false, (7,0--8,13), { ModuleKeyword = Some (7,0--7,6)
-                                    EqualsRange = Some (7,19--7,20) })],
+                        EqualsRange = Some (8,10--8,11) })], (8,4--8,13),
+                  { InKeyword = None })], false, (7,0--8,13),
+              { ModuleKeyword = Some (7,0--7,6)
+                EqualsRange = Some (7,19--7,20) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--8,13), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Module Same Indentation 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module Same Indentation 01.fs.bsl
index 9b9908dbd51..4b5f37845d7 100644
--- a/tests/service/data/SyntaxTree/Type/Module Same Indentation 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module Same Indentation 01.fs.bsl	
@@ -59,7 +59,7 @@ ImplFile
                       Yes (9,4--9,14), { LeadingKeyword = Let (9,4--9,7)
                                          InlineKeyword = None
                                          EqualsRange = Some (9,10--9,11) })],
-                  (9,4--9,14))], false, (8,0--9,14),
+                  (9,4--9,14), { InKeyword = None })], false, (8,0--9,14),
               { ModuleKeyword = Some (8,0--8,6)
                 EqualsRange = Some (8,9--8,10) });
            Types
diff --git a/tests/service/data/SyntaxTree/Type/Module With Semicolon Delimiter 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Module With Semicolon Delimiter 01.fs.bsl
index f3af1f613ca..a32fe9a3cc2 100644
--- a/tests/service/data/SyntaxTree/Type/Module With Semicolon Delimiter 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Module With Semicolon Delimiter 01.fs.bsl	
@@ -39,7 +39,7 @@ ImplFile
                       Yes (7,8--7,17), { LeadingKeyword = Let (7,8--7,11)
                                          InlineKeyword = None
                                          EqualsRange = Some (7,14--7,15) })],
-                  (7,8--7,17))], false, (6,4--7,17),
+                  (7,8--7,17), { InKeyword = None })], false, (6,4--7,17),
               { ModuleKeyword = Some (6,4--6,10)
                 EqualsRange = Some (6,32--6,33) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
diff --git a/tests/service/data/SyntaxTree/Type/Nested Module Hierarchy 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Nested Module Hierarchy 01.fs.bsl
index 14fa4838071..5e9f1664abd 100644
--- a/tests/service/data/SyntaxTree/Type/Nested Module Hierarchy 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Nested Module Hierarchy 01.fs.bsl	
@@ -52,15 +52,15 @@ ImplFile
                                   { LeadingKeyword = Let (9,20--9,23)
                                     InlineKeyword = None
                                     EqualsRange = Some (9,26--9,27) })],
-                              (9,20--9,29))], false, (8,16--9,29),
-                          { ModuleKeyword = Some (8,16--8,22)
-                            EqualsRange = Some (8,37--8,38) })], false,
-                      (6,8--9,29), { ModuleKeyword = Some (6,8--6,14)
-                                     EqualsRange = Some (6,22--6,23) })], false,
-                  (5,4--9,29), { ModuleKeyword = Some (5,4--5,10)
-                                 EqualsRange = Some (5,18--5,19) })], false,
-              (4,0--9,29), { ModuleKeyword = Some (4,0--4,6)
-                             EqualsRange = Some (4,14--4,15) })],
+                              (9,20--9,29), { InKeyword = None })], false,
+                          (8,16--9,29), { ModuleKeyword = Some (8,16--8,22)
+                                          EqualsRange = Some (8,37--8,38) })],
+                      false, (6,8--9,29), { ModuleKeyword = Some (6,8--6,14)
+                                            EqualsRange = Some (6,22--6,23) })],
+                  false, (5,4--9,29), { ModuleKeyword = Some (5,4--5,10)
+                                        EqualsRange = Some (5,18--5,19) })],
+              false, (4,0--9,29), { ModuleKeyword = Some (4,0--4,6)
+                                    EqualsRange = Some (4,14--4,15) })],
           PreXmlDoc ((2,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (2,0--9,29), { LeadingKeyword = Module (2,0--2,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/One Line With Semicolons 01.fs.bsl b/tests/service/data/SyntaxTree/Type/One Line With Semicolons 01.fs.bsl
index 6d4170c7795..f7d8eebe54c 100644
--- a/tests/service/data/SyntaxTree/Type/One Line With Semicolons 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/One Line With Semicolons 01.fs.bsl	
@@ -62,7 +62,7 @@ ImplFile
                   (4,70--4,74), NoneAtLet, { LeadingKeyword = Let (4,66--4,69)
                                              InlineKeyword = None
                                              EqualsRange = Some (4,75--4,76) })],
-              (4,66--4,79));
+              (4,66--4,79), { InKeyword = None });
            Open
              (ModuleOrNamespace
                 (SynLongIdent ([System], [], [None]), (4,86--4,92)),
diff --git a/tests/service/data/SyntaxTree/Type/Record 01.fs.bsl b/tests/service/data/SyntaxTree/Type/Record 01.fs.bsl
index ce490f4890d..50126fc6544 100644
--- a/tests/service/data/SyntaxTree/Type/Record 01.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Record 01.fs.bsl	
@@ -38,7 +38,8 @@ ImplFile
                   Const (Unit, (9,10--9,12)), (9,4--9,7), Yes (9,0--9,12),
                   { LeadingKeyword = Let (9,0--9,3)
                     InlineKeyword = None
-                    EqualsRange = Some (9,8--9,9) })], (9,0--9,12))],
+                    EqualsRange = Some (9,8--9,9) })], (9,0--9,12),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--9,12), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/Record 02.fs.bsl b/tests/service/data/SyntaxTree/Type/Record 02.fs.bsl
index 2805bef72c4..986cadf5de9 100644
--- a/tests/service/data/SyntaxTree/Type/Record 02.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Record 02.fs.bsl	
@@ -39,7 +39,8 @@ ImplFile
                   Const (Unit, (9,10--9,12)), (9,4--9,7), Yes (9,0--9,12),
                   { LeadingKeyword = Let (9,0--9,3)
                     InlineKeyword = None
-                    EqualsRange = Some (9,8--9,9) })], (9,0--9,12))],
+                    EqualsRange = Some (9,8--9,9) })], (9,0--9,12),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--9,12), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []
diff --git a/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStruct.fs.bsl b/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStruct.fs.bsl
index 2091682bac4..a1c7db8a6dc 100644
--- a/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStruct.fs.bsl
+++ b/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStruct.fs.bsl
@@ -31,8 +31,9 @@ ImplFile
                         (2,7--2,25)), (2,28--2,30)), (2,4--2,5), Yes (2,0--2,30),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,26--2,27) })], (2,0--2,30))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,26--2,27) })], (2,0--2,30),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
diff --git a/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStructRecovery.fs.bsl b/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStructRecovery.fs.bsl
index 243e4f59db4..a2e63034dd5 100644
--- a/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStructRecovery.fs.bsl
+++ b/tests/service/data/SyntaxTree/Type/SynTypeTupleWithStructRecovery.fs.bsl
@@ -31,11 +31,12 @@ ImplFile
                         (2,7--2,24)), (2,27--2,29)), (2,4--2,5), Yes (2,0--2,29),
                   { LeadingKeyword = Let (2,0--2,3)
                     InlineKeyword = None
-                    EqualsRange = Some (2,25--2,26) })], (2,0--2,29))],
-          PreXmlDocEmpty, [], None, (2,0--3,0), { LeadingKeyword = None })],
-      (true, true), { ConditionalDirectives = []
-                      WarnDirectives = []
-                      CodeComments = [] }, set []))
+                    EqualsRange = Some (2,25--2,26) })], (2,0--2,29),
+              { InKeyword = None })], PreXmlDocEmpty, [], None, (2,0--3,0),
+          { LeadingKeyword = None })], (true, true),
+      { ConditionalDirectives = []
+        WarnDirectives = []
+        CodeComments = [] }, set []))
 
 (2,25)-(2,26) parse error Unexpected symbol '=' in binding. Expected ')' or other token.
 (2,14)-(2,15) parse error Unmatched '('
diff --git a/tests/service/data/SyntaxTree/Type/Union 08.fs.bsl b/tests/service/data/SyntaxTree/Type/Union 08.fs.bsl
index f018775dd8a..82fde979587 100644
--- a/tests/service/data/SyntaxTree/Type/Union 08.fs.bsl	
+++ b/tests/service/data/SyntaxTree/Type/Union 08.fs.bsl	
@@ -40,9 +40,10 @@ ImplFile
                       (7,8--7,12), NoneAtLet,
                       { LeadingKeyword = Let (7,4--7,7)
                         InlineKeyword = None
-                        EqualsRange = Some (7,13--7,14) })], (7,4--7,17))],
-              false, (6,0--7,17), { ModuleKeyword = Some (6,0--6,6)
-                                    EqualsRange = Some (6,18--6,19) });
+                        EqualsRange = Some (7,13--7,14) })], (7,4--7,17),
+                  { InKeyword = None })], false, (6,0--7,17),
+              { ModuleKeyword = Some (6,0--6,6)
+                EqualsRange = Some (6,18--6,19) });
            Types
              ([SynTypeDefn
                  (SynComponentInfo
diff --git a/tests/service/data/SyntaxTree/UnionCase/Missing keyword of.fs.bsl b/tests/service/data/SyntaxTree/UnionCase/Missing keyword of.fs.bsl
index 88799b9de0d..2e9707e1462 100644
--- a/tests/service/data/SyntaxTree/UnionCase/Missing keyword of.fs.bsl	
+++ b/tests/service/data/SyntaxTree/UnionCase/Missing keyword of.fs.bsl	
@@ -15,7 +15,8 @@ ImplFile
                   Const (Unit, (3,8--3,10)), (3,4--3,5), Yes (3,0--3,10),
                   { LeadingKeyword = Let (3,0--3,3)
                     InlineKeyword = None
-                    EqualsRange = Some (3,6--3,7) })], (3,0--3,10));
+                    EqualsRange = Some (3,6--3,7) })], (3,0--3,10),
+              { InKeyword = None });
            Types
              ([SynTypeDefn
                  (SynComponentInfo
@@ -79,7 +80,8 @@ ImplFile
                   Const (Unit, (11,8--11,10)), (11,4--11,5), Yes (11,0--11,10),
                   { LeadingKeyword = Let (11,0--11,3)
                     InlineKeyword = None
-                    EqualsRange = Some (11,6--11,7) })], (11,0--11,10))],
+                    EqualsRange = Some (11,6--11,7) })], (11,0--11,10),
+              { InKeyword = None })],
           PreXmlDoc ((1,0), FSharp.Compiler.Xml.XmlDocCollector), [], None,
           (1,0--11,10), { LeadingKeyword = Module (1,0--1,6) })], (true, true),
       { ConditionalDirectives = []