anchor.diff:  // for details. All rights reserved. Use of this source code is governed by a
   // BSD-style license that can be found in the LICENSE.md file.
   
  -import 'dart:async' show Timer;
  +import 'dart:async' show StreamSubscription, Timer;
   import 'dart:convert' show jsonEncode;
   import 'dart:io' show File, exitCode;
   import 'dart:isolate' show Isolate, ReceivePort, SendPort;
  
positive.code: 
    // Start the test suite in a new isolate.
    ReceivePort exitPort = new ReceivePort();
    SuiteConfiguration configuration = new SuiteConfiguration(
      resultsPort.sendPort,
      logsPort.sendPort,
  
negative.code:   print("Log files written to ${resultJsonUri.toFilePath()} and"
        " ${logsJsonUri.toFilePath()}");
  
    exitCode = timeoutOrCrash ? 1 : 0;
  }
  