Compile error on const instance variables

tests/standalone/vmservice/field_script.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 unknown_command_script;
 
 import 'dart:io';
 import 'dart:typed_data';
 
 class Banana {
   final Float32List final_fixed_length_list = new Float32List(4);
   Float32List fixed_length_list = new Float32List(4);
   String name = '';
   var a = 44;
 }
 
 
 class BadBanana {
   final Float32List final_fixed_length_list;
   final List fixed_length_array = new List(3);
   num v;
-  const c = 4;
+  final c = 4;
   BadBanana() : final_fixed_length_list = new Float32List(1);
   BadBanana.variable() : final_fixed_length_list = new Float32List(2);
 }
 
 main() {
   for (int i = 0; i < 2000; i++) {
     Banana b = new Banana();
     b.name = 'Banana';
     BadBanana bb = new BadBanana();
     bb.v = 1.0;
   }
   var bb = new BadBanana.variable();
   bb.v = 2.0;
   var b = new Banana();
   b.a = 'foo';
   print(''); // Print blank line to signal that we are ready.
   // Wait until signaled from spawning test.
   stdin.first.then((_) => exit(0));
 }