| Index: runtime/lib/regexp_patch.dart
 | 
| diff --git a/runtime/lib/regexp_patch.dart b/runtime/lib/regexp_patch.dart
 | 
| index a9ccd55527ec503550ee2969c974b6a4d04c68fc..7e8bc194998bc87e03a34545c7f33797eb1f6035 100644
 | 
| --- a/runtime/lib/regexp_patch.dart
 | 
| +++ b/runtime/lib/regexp_patch.dart
 | 
| @@ -2,6 +2,8 @@
 | 
|  // 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:collection" show LinkedList, LinkedListEntry;
 | 
| +
 | 
|  @patch class RegExp {
 | 
|    @patch factory RegExp(String source,
 | 
|                                {bool multiLine: false,
 | 
| 
 |