Implement topLevelMembers, staticMembers, instanceMembers in the VM.

tests/lib/mirrors/instance_members_test.dart

 // Copyright (c) 2013, 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.instance_members;
 
 import 'dart:mirrors';
 import 'package:expect/expect.dart';
 
 import 'declarations_model.dart' as declarations_model;
@@ skipping 32 matching lines @@
     selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate));
   // Filter out private to avoid implementation-specific members of Object.
 
   Expect.setEquals(
     [#instanceVariable,
      const Symbol('instanceVariable='),
      #inheritedInstanceVariable,
      const Symbol('inheritedInstanceVariable='),
      #mixinInstanceVariable,
      const Symbol('mixinInstanceVariable=')],
-    selectKeys(cm.instanceMembers, (dm) => dm.isSynthetic));
+    selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate && dm.isSynthetic));
 }