anchor.diff:    Date _startTime;
     bool _printTiming;
     List<TestCase> _tests;
  +  List<String> _failureSummary;
   }
   
   
  
positive.code: 
    void allDone() {
      stdout.write('\n'.charCodes());
      _printTimingInformation();
      stdout.close();
      exit(_failedTests > 0 ? 1 : 0);
    }
  
negative.code: // 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.
  
  