Handle type variables.

pkg/front_end/lib/src/fasta/source/outline_builder.dart

Index: pkg/front_end/lib/src/fasta/source/outline_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/source/outline_builder.dart b/pkg/front_end/lib/src/fasta/source/outline_builder.dart
index 4549589d4596b52b14b563dabd06e9a3170f4987..95e49b79091f5ccd0c295670dfc527bae2279553 100644
--- a/pkg/front_end/lib/src/fasta/source/outline_builder.dart
+++ b/pkg/front_end/lib/src/fasta/source/outline_builder.dart
@@ -210,6 +210,11 @@ class OutlineBuilder extends UnhandledListener {
   }
 
   @override
+  void beginTopLevelMethod(Token token, Token name) {
+    library.beginNestedScope(hasMembers: false);
+  }
+
+  @override
   ProcedureBuilder endTopLevelMethod(
       Token beginToken, Token getOrSet, Token endToken) {
     debugEvent("endTopLevelMethod");
@@ -240,6 +245,11 @@ class OutlineBuilder extends UnhandledListener {
   }
 
   @override
+  void beginMethod(Token token, Token name) {
+    library.beginNestedScope(hasMembers: false);
+  }
+
+  @override
   void endMethod(Token getOrSet, Token beginToken, Token endToken) {
     debugEvent("Method");
     MethodBody kind = pop();
@@ -272,7 +282,7 @@ class OutlineBuilder extends UnhandledListener {
 
   @override
   void beginNamedMixinApplication(Token token) {
-    library.beginNestedScope();
+    library.beginNestedScope(hasMembers: false);
   }
 
   @override