Changes to how we handle fancy stacks:

tests/standalone/io/test_runner_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 "dart:io";
 import "dart:isolate";
 import "dart:async";
 import "dart:utf";
 import "../../../tools/testing/dart/test_runner.dart";
 import "../../../tools/testing/dart/test_suite.dart";
@@ skipping 100 matching lines @@
   void done(TestCase test) {
     TestController.processCompletedTest(test);
   }
 }
 
 void main() {
   // Run the test_runner_test if there are no command-line options.
   // Otherwise, run one of the component tests that always pass,
   // fail, or timeout.
   var arguments = new Options().arguments;
+  arguments.remove('--no-fancy-stacks'); // The test runner can add this.
   if (arguments.isEmpty) {
     testProcessQueue();
   } else {
     switch (arguments[0]) {
       case 'pass':
         return;
       case 'fail-unexpected':
       case 'fail':
         throw "This test always fails, to test the test scripts.";
         break;
       case 'timeout':
         // Run for 10 seconds, then exit.  This tests a 2 second timeout.
         new Timer(new Duration(seconds: 10), (){ });
         break;
       default:
         throw "Unknown option ${arguments[0]} passed to test_runner_test";
     }
   }
 }