Break up another large file

pkg/analysis_server/test/stress/replay/replay.dart

 // Copyright (c) 2015, 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.
 
 /**
  * A stress test for the analysis server.
  */
 library analysis_server.test.stress.replay.replay;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:math' as math;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analyzer/dart/ast/token.dart';
+import 'package:analyzer/error/listener.dart' as error;
 import 'package:analyzer/src/dart/scanner/reader.dart';
 import 'package:analyzer/src/dart/scanner/scanner.dart';
-import 'package:analyzer/src/generated/error.dart' as error;
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/util/glob.dart';
 import 'package:args/args.dart';
 import 'package:path/path.dart' as path;
 
 import '../utilities/git.dart';
 import '../utilities/server.dart';
 import 'operation.dart';
 
@@ skipping 608 matching lines @@
     minutes -= hours * 60;
 
     if (hours > 0) {
       return '$hours:$minutes:$seconds.$milliseconds';
     } else if (minutes > 0) {
       return '$minutes:$seconds.$milliseconds';
     }
     return '$seconds.$milliseconds';
   }
 }