dart2js OldEmitter: inline FinishClasses.

tests/compiler/dart2js/size_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.
 
 import 'package:expect/expect.dart';
 import "package:async_helper/async_helper.dart";
 import "compiler_helper.dart";
 
 const String TEST = "main() => [];";
 
@@ skipping 14 matching lines @@
   'proxy': 'const proxy = 0;',
 };
 
 main() {
   asyncTest(() => compileAll(TEST, coreSource: DEFAULT_CORELIB_WITH_LIST).
       then((generated) {
     return MockCompiler.create((MockCompiler compiler) {
       var backend = compiler.backend;
 
       // Make sure no class is emitted.
-      Expect.isFalse(generated.contains(
-          backend.emitter.oldEmitter.finishClassesName));
+      Expect.isFalse(generated.contains('finishClasses'));
     });
   }));
 }