Don't type promote local functions.

pkg/front_end/lib/src/fasta/builder/ast_factory.dart

Index: pkg/front_end/lib/src/fasta/builder/ast_factory.dart
diff --git a/pkg/front_end/lib/src/fasta/builder/ast_factory.dart b/pkg/front_end/lib/src/fasta/builder/ast_factory.dart
index 453281083a1c205fd5432163516d1eaa42f16b75..47f13c16bc254c73019044f275c2ba9058ad62e5 100644
--- a/pkg/front_end/lib/src/fasta/builder/ast_factory.dart
+++ b/pkg/front_end/lib/src/fasta/builder/ast_factory.dart
@@ -189,7 +189,8 @@ abstract class AstFactory<V> {
       Expression initializer,
       Token equalsToken,
       bool isFinal: false,
-      bool isConst: false});
+      bool isConst: false,
+      bool isLocalFunction: false});
 
   /// Creates a read of a local variable.
   VariableGet variableGet(VariableDeclaration variable,