Mostly use Entity in InterceptorData

pkg/compiler/lib/src/js_backend/impact_transformer.dart

 // Copyright (c) 2017, 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.
 
 library js_backend.backend.impact_transformer;
 
 import '../common.dart';
 import '../common_elements.dart';
 import '../common/backend_api.dart' show ImpactTransformer;
 import '../common/codegen.dart' show CodegenImpact;
 import '../common/resolution.dart' show Resolution, ResolutionImpact;
 import '../constants/expressions.dart';
-import '../constants/values.dart';
 import '../common_elements.dart' show ElementEnvironment;
 import '../elements/elements.dart';
+import '../elements/entities.dart';
 import '../elements/resolution_types.dart';
 import '../enqueue.dart' show ResolutionEnqueuer;
 import '../native/enqueue.dart';
 import '../native/native.dart' as native;
 import '../options.dart';
 import '../universe/feature.dart';
 import '../universe/use.dart'
-    show ConstantUse, StaticUse, StaticUseKind, TypeUse, TypeUseKind;
+    show StaticUse, StaticUseKind, TypeUse, TypeUseKind;
 import '../universe/world_impact.dart' show TransformedWorldImpact, WorldImpact;
 import '../util/util.dart';
 import 'backend.dart';
 import 'backend_helpers.dart';
 import 'backend_impact.dart';
 import 'backend_usage.dart';
 import 'checked_mode_helpers.dart';
 import 'custom_elements_analysis.dart';
 import 'interceptor_data.dart';
 import 'lookup_map_analysis.dart';
@@ skipping 401 matching lines @@
           }
           break;
         case StaticUseKind.CONST_CONSTRUCTOR_INVOKE:
         case StaticUseKind.CONSTRUCTOR_INVOKE:
           _lookupMapAnalysis.registerInstantiatedType(staticUse.type);
           break;
         default:
       }
     }
 
-    for (Set<ClassElement> classes in impact.specializedGetInterceptors) {
+    for (Set<ClassEntity> classes in impact.specializedGetInterceptors) {
       _oneShotInterceptorData.registerSpecializedGetInterceptor(
           classes, _namer);
     }
 
     if (impact.usesInterceptor) {
       if (_nativeCodegenEnqueuer.hasInstantiatedNativeClasses) {
         _impacts.interceptorUse
             .registerImpact(transformed, _elementEnvironment);
         // TODO(johnniwinther): Avoid these workarounds.
         _backendUsage.needToInitializeIsolateAffinityTag = true;
@@ skipping 14 matching lines @@
           _impacts.asyncStarBody
               .registerImpact(transformed, _elementEnvironment);
           break;
       }
     }
 
     // TODO(johnniwinther): Remove eager registration.
     return transformed;
   }
 }