Fix bug in ClassElement.lookupSelector: by returning an abstract method, we were not returning the …

sdk/lib/_internal/compiler/implementation/resolution/members.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.
 
 part of resolution;
 
 abstract class TreeElements {
   Element get currentElement;
   Set<Node> get superUses;
 
@@ skipping 1999 matching lines @@
         return null;
       }
       if (currentClass.supertype == null) {
         // This is just to guard against internal errors, so no need
         // for a real error message.
         error(node.receiver, MessageKind.GENERIC,
               {'text': "Object has no superclass"});
       }
       // TODO(johnniwinther): Ensure correct behavior if currentClass is a
       // patch.
-      target = currentClass.lookupSuperSelector(selector);
+      target = currentClass.lookupSuperSelector(selector, compiler);
       // [target] may be null which means invoking noSuchMethod on
       // super.
       if (target == null) {
         target = warnAndCreateErroneousElement(
             node, name, MessageKind.NO_SUCH_SUPER_MEMBER,
             {'className': currentClass, 'memberName': name});
         // We still need to register the invocation, because we might
         // call [:super.noSuchMethod:] which calls
         // [JSInvocationMirror._invokeOn].
         world.registerDynamicInvocation(selector.name, selector);
@@ skipping 312 matching lines @@
       Selector getterSelector;
       if (selector.isSetter()) {
         getterSelector = new Selector.getterFrom(selector);
       } else {
         assert(selector.isIndexSet());
         getterSelector = new Selector.index();
       }
       registerSend(getterSelector, getter);
       mapping.setGetterSelectorInComplexSendSet(node, getterSelector);
       if (node.isSuperCall) {
-        getter = currentClass.lookupSuperSelector(getterSelector);
+        getter = currentClass.lookupSuperSelector(getterSelector, compiler);
         if (getter == null) {
           target = warnAndCreateErroneousElement(
               node, selector.name, MessageKind.NO_SUCH_SUPER_MEMBER,
               {'className': currentClass, 'memberName': selector.name});
           compiler.backend.registerSuperNoSuchMethod(mapping);
         }
       }
       useElement(node.selector, getter);
 
       // Make sure we include the + and - operators if we are using
@@ skipping 1596 matching lines @@
     return e;
   }
 
   /// Assumed to be called by [resolveRedirectingFactory].
   Element visitReturn(Return node) {
     Node expression = node.expression;
     return finishConstructorReference(visit(expression),
                                       expression, expression);
   }
 }