Revert 24086 Update checked in binary to version 0.5.19.0

tools/testing/dart/record_and_replay.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.
 
 library record_and_replay;
 
 import 'dart:io';
 import 'dart:json' as json;
 import 'dart:utf';
 
@@ skipping 23 matching lines @@
  * ]
  */
 
 
 class TestCaseRecorder {
   Path _outputPath;
   List<Map> _recordedCommandInvocations = [];
   var _cwd;
 
   TestCaseRecorder(this._outputPath) {
-    _cwd  = Directory.current.path;
+    _cwd  = new Directory.current().path;
   }
 
   void nextTestCase(TestCase testCase) {
     assert(testCase.commands.length == 1);
 
     var command = testCase.commands[0];
     assert(command.environment == null);
 
     var arguments = [];
     for (var rawArgument in command.arguments) {
@@ skipping 62 matching lines @@
         duration,
         false);
     return commandOutput;
   }
 
   String _indexKey(String configuration, String name) {
     return "${configuration}__$name";
   }
 }