Escape a couple more special characters (#1807)

* Add more special characters for escaping

* One more special character

Author: manodasanW

build/AzurePipelineTemplates/CsWinRT-Variables.yml

@@ -5,7 +5,7 @@ variables:
 - name: MinorVersion
   value: 1
 - name: PatchVersion
-  value: 4
+  value: 5
 - name: WinRT.Runtime.AssemblyVersion
   value: '2.1.0.0'
 - name: Net5.SDK.Feed

src/Authoring/WinRT.SourceGenerator/Helper.cs

@@ -1045,7 +1045,7 @@ public static string GetAbiMarshalerType(string type, string abiType, TypeKind k
 
         public static string EscapeTypeNameForIdentifier(string typeName)
         {
-            return Regex.Replace(typeName, """[(\ |:<>,\.\-@)]""", "_");
+            return Regex.Replace(typeName, """[(\ |:<>,\.\-@;+'^!`)]""", "_");
         }
 
         public readonly struct MappedType