| Index: pkg/compiler/lib/src/dart_backend/dart_backend.dart | 
| diff --git a/pkg/compiler/lib/src/dart_backend/dart_backend.dart b/pkg/compiler/lib/src/dart_backend/dart_backend.dart | 
| index ee653f0d326759d41dbdbdc4b91bad4f9ecdfa7a..729091fd1c995d03b2598779b35bf28635de26e1 100644 | 
| --- a/pkg/compiler/lib/src/dart_backend/dart_backend.dart | 
| +++ b/pkg/compiler/lib/src/dart_backend/dart_backend.dart | 
| @@ -7,53 +7,30 @@ library dart_backend; | 
| import 'dart:async' show Future; | 
| import 'dart:math' show max; | 
|  | 
| -import '../../compiler.dart' show | 
| -    CompilerOutputProvider; | 
| +import '../../compiler.dart' show CompilerOutputProvider; | 
| import '../common.dart'; | 
| -import '../common/backend_api.dart' show | 
| -    Backend, | 
| -    ImpactTransformer; | 
| -import '../common/codegen.dart' show | 
| -    CodegenWorkItem; | 
| -import '../common/names.dart' show | 
| -    Selectors, | 
| -    Uris; | 
| -import '../common/registry.dart' show | 
| -    Registry; | 
| -import '../common/resolution.dart' show | 
| -    Resolution, | 
| -    ResolutionImpact; | 
| -import '../common/tasks.dart' show | 
| -    CompilerTask; | 
| -import '../compiler.dart' show | 
| -    Compiler; | 
| +import '../common/backend_api.dart' show Backend, ImpactTransformer; | 
| +import '../common/codegen.dart' show CodegenWorkItem; | 
| +import '../common/names.dart' show Selectors, Uris; | 
| +import '../common/registry.dart' show Registry; | 
| +import '../common/resolution.dart' show Resolution, ResolutionImpact; | 
| +import '../common/tasks.dart' show CompilerTask; | 
| +import '../compiler.dart' show Compiler; | 
| import '../compile_time_constants.dart'; | 
| import '../constants/constant_system.dart'; | 
| import '../constants/expressions.dart'; | 
| import '../constants/values.dart'; | 
| import '../dart_types.dart'; | 
| import '../elements/elements.dart'; | 
| -import '../enqueue.dart' show | 
| -    Enqueuer, | 
| -    ResolutionEnqueuer; | 
| -import '../library_loader.dart' show | 
| -    LoadedLibraries; | 
| +import '../enqueue.dart' show Enqueuer, ResolutionEnqueuer; | 
| +import '../library_loader.dart' show LoadedLibraries; | 
| import '../mirror_renamer/mirror_renamer.dart'; | 
| -import '../resolution/tree_elements.dart' show | 
| -    TreeElements, | 
| -    TreeElementMapping; | 
| -import '../tokens/keyword.dart' show | 
| -    Keyword; | 
| +import '../resolution/tree_elements.dart' show TreeElements, TreeElementMapping; | 
| +import '../tokens/keyword.dart' show Keyword; | 
| import '../tree/tree.dart'; | 
| -import '../universe/selector.dart' show | 
| -    Selector; | 
| -import '../universe/use.dart' show | 
| -    DynamicUse, | 
| -    TypeUse, | 
| -    TypeUseKind; | 
| -import '../universe/world_impact.dart' show | 
| -    WorldImpact, | 
| -    TransformedWorldImpact; | 
| +import '../universe/selector.dart' show Selector; | 
| +import '../universe/use.dart' show DynamicUse, TypeUse, TypeUseKind; | 
| +import '../universe/world_impact.dart' show WorldImpact, TransformedWorldImpact; | 
| import '../util/util.dart'; | 
| import 'backend_ast_to_frontend_ast.dart' as backend2frontend; | 
|  | 
|  |