Handle metadata on nested function parameters.

tests/language/metadata_scope1_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library test_lib2_foo;
+// Test that a type variable is not in scope for metadata declared on the type
+// declaration.
 
-export 'test_lib2_bar.dart';
-
-class Foo {
-
-}
+@deprecated
+typedef Foo
+<deprecated>  /// 01: ok
+();
 
 main() {
-  print('hello world');
+  Foo f = null;
 }