Add test for final field initialization (fails on the VM).

tests/language/final_field_initialization_order_test.dart

 // Copyright (c) 2012, 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.
-// Test that field initializers are evaluated in the right order.
+
+// Test that initializers for final fields are evaluated in the right
+// order.
 
 int counter = 0;
 
 class Mark {
   static StringBuffer buffer;
   Mark(value) {
     buffer.add('$value.');
   }
 }
 
 class OneField {
-  var a = new Mark('a');
+  final a = new Mark('a');
 
   OneField();
 
   OneField.init() : a = new Mark('ai');
 }
 
 class TwoFields {
-  var b = new Mark('b');
-  var a = new Mark('a');
+  final b = new Mark('b');
+  final a = new Mark('a');
 
   TwoFields();
 
   TwoFields.initA() : a = new Mark('ai');
 
   TwoFields.initB() : b = new Mark('bi');
 
   TwoFields.initBoth() : a = new Mark('ai'), b = new Mark('bi');
 }
 
 class InheritOneField extends OneField {
-  var b = new Mark('b');
+  final b = new Mark('b');
 
   InheritOneField() : super();
 
   InheritOneField.init() : b = new Mark('bi'), super();
 
   InheritOneField.superWithInit() : super.init();
 
   InheritOneField.initWithSuperInit() : b = new Mark('bi'), super.init();
 
   InheritOneField.initWithSuperInit2() : super.init(), b = new Mark('bi');
 }
 
 String run(callback) {
   Mark.buffer = new StringBuffer();
   callback();
   return Mark.buffer.toString();
 }
 
 main() {
   Expect.equals('a.', run(() => new OneField()));
   Expect.equals('a.ai.', run(() => new OneField.init()));
 
   Expect.equals('b.a.', run(() => new TwoFields()));
   Expect.equals('b.a.ai.', run(() => new TwoFields.initA()));
   Expect.equals('b.a.bi.', run(() => new TwoFields.initB()));
   Expect.equals('b.a.ai.bi.', run(() => new TwoFields.initBoth()));
 
-  Expect.equals('b.a.', run(() => new InheritOneField()));
-  Expect.equals('b.bi.a.', run(() => new InheritOneField.init()));
-  Expect.equals('b.a.ai.', run(() => new InheritOneField.superWithInit()));
-  Expect.equals('b.bi.a.ai.', run(() => new InheritOneField.initWithSuperInit()));
-  Expect.equals('b.a.ai.bi.', run(() => new InheritOneField.initWithSuperInit2()));
+  Expect.equals('b.a.', run(() =>
+      new InheritOneField()));
+  Expect.equals('b.bi.a.', run(() =>
+      new InheritOneField.init()));
+  Expect.equals('b.a.ai.', run(() =>
+      new InheritOneField.superWithInit()));
+  Expect.equals('b.bi.a.ai.', run(() =>
+      new InheritOneField.initWithSuperInit()));
+  Expect.equals('b.a.ai.bi.', run(() =>
+      new InheritOneField.initWithSuperInit2()));
 }