Use entities in impact transformers.

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

 // Copyright (c) 2012, 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;
 
 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames;
 
 import '../common.dart';
 import '../common/backend_api.dart'
@@ skipping 839 matching lines @@
     _customElementsResolutionAnalysis = new CustomElementsResolutionAnalysis(
         compiler.resolution,
         constantSystem,
         commonElements,
         backendClasses,
         helpers,
         nativeBasicData,
         backendUsageBuilder);
     impactTransformer = new JavaScriptImpactTransformer(
         compiler.options,
-        compiler.resolution,
         compiler.elementEnvironment,
         commonElements,
         impacts,
         nativeBasicData,
         _nativeResolutionEnqueuer,
         backendUsageBuilder,
         mirrorsDataBuilder,
         customElementsResolutionAnalysis,
         rtiNeedBuilder);
     _interceptorDataBuilder = new InterceptorDataBuilderImpl(
@@ skipping 730 matching lines @@
 
   bool canUseAliasedSuperMember(MemberEntity member, Selector selector) {
     return !selector.isGetter;
   }
 
   /// Returns `true` if [member] is called from a subclass via `super`.
   bool isAliasedSuperMember(MemberEntity member) {
     return _aliasedSuperMembers.contains(member);
   }
 }