Remove backend reference from ResolutionEnqueuerListener.

pkg/compiler/lib/src/js_backend/interceptor_data.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.interceptor_data;
 
 import '../common/names.dart' show Identifiers;
+import '../common/resolution.dart' show Resolution;
 import '../common_elements.dart' show CommonElements;
 import '../elements/elements.dart';
 import '../elements/entities.dart';
 import '../elements/types.dart';
 import '../js/js.dart' as jsAst;
 import '../types/types.dart' show TypeMask;
 import '../universe/selector.dart';
 import '../world.dart' show ClosedWorld;
 import 'backend_helpers.dart';
 import 'namer.dart';
@@ skipping 191 matching lines @@
     ClassEntity classElement = interfaceType.element;
     if (isInterceptedClass(classElement)) return false;
     return _closedWorld.hasOnlySubclasses(classElement);
   }
 }
 
 class InterceptorDataBuilderImpl implements InterceptorDataBuilder {
   final NativeData _nativeData;
   final BackendHelpers _helpers;
   final CommonElements _commonElements;
+  final Resolution _resolution;

[Siggi Cherem (dart-lang), 2017/03/14 03:35:17]

any chance that we are guaranteed that cls arguments below are already resolved
and we can drop this dependency too?

[Johnni Winther, 2017/03/15 10:10:20]

Still investigating. It will be gone soon!

 
   /// The members of instantiated interceptor classes: maps a member name to the
   /// list of members that have that name. This map is used by the codegen to
   /// know whether a send must be intercepted or not.
   final Map<String, Set<Element>> _interceptedElements =
       <String, Set<Element>>{};
 
   /// Set of classes whose methods are intercepted.
   final Set<ClassElement> _interceptedClasses = new Set<ClassElement>();
 
   /// Set of classes used as mixins on intercepted (native and primitive)
   /// classes. Methods on these classes might also be mixed in to regular Dart
   /// (unintercepted) classes.
   final Set<ClassElement> _classesMixedIntoInterceptedClasses =
       new Set<ClassElement>();
 
   InterceptorDataBuilderImpl(
-      this._nativeData, this._helpers, this._commonElements);
+      this._nativeData, this._helpers, this._commonElements, this._resolution);
 
   InterceptorData onResolutionComplete(ClosedWorld closedWorld) {
     return new InterceptorDataImpl(
         _nativeData,
         _helpers,
         closedWorld,
         _interceptedElements,
         _interceptedClasses,
         _classesMixedIntoInterceptedClasses);
   }
 
   void addInterceptorsForNativeClassMembers(ClassElement cls) {
+    cls.ensureResolved(_resolution);
     cls.forEachMember((ClassElement classElement, Element member) {
       if (member.name == Identifiers.call) {
         return;
       }
       if (member.isSynthesized) return;
       // All methods on [Object] are shadowed by [Interceptor].
       if (classElement == _commonElements.objectClass) return;
       Set<Element> set = _interceptedElements.putIfAbsent(
           member.name, () => new Set<Element>());
       set.add(member);
     }, includeSuperAndInjectedMembers: true);
 
     // Walk superclass chain to find mixins.
     for (; cls != null; cls = cls.superclass) {
       if (cls.isMixinApplication) {
         MixinApplicationElement mixinApplication = cls;
         _classesMixedIntoInterceptedClasses.add(mixinApplication.mixin);
       }
     }
   }
 
   void addInterceptors(ClassElement cls) {
     if (_interceptedClasses.add(cls)) {
+      cls.ensureResolved(_resolution);
       cls.forEachMember((ClassElement classElement, Element member) {
         // All methods on [Object] are shadowed by [Interceptor].
         if (classElement == _commonElements.objectClass) return;
         Set<Element> set = _interceptedElements.putIfAbsent(
             member.name, () => new Set<Element>());
         set.add(member);
       }, includeSuperAndInjectedMembers: true);
     }
     _interceptedClasses.add(_helpers.jsInterceptorClass);
   }
@@ skipping 46 matching lines @@
     jsAst.Name name = namer.nameForGetInterceptor(classes);
     if (classes.contains(_helpers.jsInterceptorClass)) {
       // We can't use a specialized [getInterceptorMethod], so we make
       // sure we emit the one with all checks.
       _specializedGetInterceptors[name] = _interceptorData.interceptedClasses;
     } else {
       _specializedGetInterceptors[name] = classes;
     }
   }
 }