Ensure eval_quoted properly resets last definition, closes #8261

Signed-off-by: José Valim <[email protected]>

Author: José Valim

lib/elixir/src/elixir_def.erl

@@ -11,7 +11,7 @@ setup(DataTables) ->
   ok.
 
 reset_last({DataSet, _DataBag}) ->
-  ets:insert(DataSet, {?last_def, []});
+  ets:insert(DataSet, {?last_def, none});
 
 reset_last(Module) when is_atom(Module) ->
   reset_last(elixir_module:data_tables(Module)).

lib/elixir/test/elixir/module_test.exs

@@ -85,7 +85,18 @@ defmodule ModuleTest do
     assert eval_quoted_info() == {ModuleTest, "sample.ex", 13}
   end
 
-  test "retrieves line from macros" do
+  test "resets last definition information on eval" do
+    # This should not emit any warning
+    defmodule LastDefinition do
+      def foo(0), do: 0
+      Module.eval_quoted(__ENV__, quote do
+        def bar, do: :ok
+      end)
+      def foo(1), do: 1
+    end
+  end
+
+  test "retrieves line from use callsite" do
     assert ModuleTest.ToUse.line() == 40
   end