| Index: pkg/compiler/lib/src/universe/world_builder.dart
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| diff --git a/pkg/compiler/lib/src/universe/world_builder.dart b/pkg/compiler/lib/src/universe/world_builder.dart
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| index 03ce95f51f59591f7f86c5d31a53cabbdc83f1dc..3bb4478a6b4a6171b16735a3b5713e859ef77e24 100644
 | 
| --- a/pkg/compiler/lib/src/universe/world_builder.dart
 | 
| +++ b/pkg/compiler/lib/src/universe/world_builder.dart
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| @@ -15,6 +15,7 @@ import '../elements/entities.dart';
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|  import '../elements/resolution_types.dart';
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|  import '../elements/types.dart';
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|  import '../js_backend/backend.dart' show JavaScriptBackend;
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| +import '../js_backend/native_data.dart' show NativeClassData;
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|  import '../universe/class_set.dart';
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|  import '../universe/function_set.dart' show FunctionSetBuilder;
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|  import '../util/enumset.dart';
 | 
| 
 |