| Index: lib/compiler/implementation/dart_backend/renamer.dart
 | 
| ===================================================================
 | 
| --- lib/compiler/implementation/dart_backend/renamer.dart	(revision 10860)
 | 
| +++ lib/compiler/implementation/dart_backend/renamer.dart	(working copy)
 | 
| @@ -17,7 +17,7 @@
 | 
|    int privateNameCounter = 0;
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|  
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|    String getName(LibraryElement library, String originalName, renamer) =>
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| -      renamed.putIfAbsent(library, () => <String>{})
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| +      renamed.putIfAbsent(library, () => <String, String>{})
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|            .putIfAbsent(originalName, renamer);
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|  
 | 
|    String renamePrivateIdentifier(LibraryElement library, String id) =>
 | 
| 
 |