Revert "NoSuchMethod on different super accesses/invocations handled."

sdk/lib/_internal/compiler/implementation/elements/elements.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 elements;
 
 import 'dart:uri';
 
 // TODO(ahe): Rename prefix to 'api' when VM bug is fixed.
 import '../../compiler.dart' as api_e;
@@ skipping 1849 matching lines @@
   static bool isClosureSend(Send send, Element element) {
     if (send.isPropertyAccess) return false;
     if (send.receiver != null) return false;
     // (o)() or foo()().
     if (element == null && send.selector.asIdentifier() == null) return true;
     if (element == null) return false;
     // foo() with foo a local or a parameter.
     return isLocal(element);
   }
 
-  /**
-   * Returns [:true:] if [element] represents an entity that can be used as the
-   * left-hand side of an assignment. For example a non-final field, a setter,
-   * or an abstract field with a setter.
-   */
-  static bool isAssignable(Element element) {
-    if (element == null) return false;
-    if (element.isField()) {
-      return !element.modifiers.isFinalOrConst();
-    } else if (element.isAbstractField()) {
-      AbstractFieldElement abstractFieldElement = element;
-      return abstractFieldElement.setter != null;
-    } else if (element.isSetter()) {
-      return true;
-    }
-    return false;
-  }
-
-
   static SourceString constructConstructorName(SourceString receiver,
                                                SourceString selector) {
     String r = receiver.slowToString();
     String s = selector.slowToString();
     return new SourceString('$r\$$s');
   }
 
   static SourceString deconstructConstructorName(SourceString name,
                                                  ClassElement holder) {
     String r = '${holder.name.slowToString()}\$';
@@ skipping 285 matching lines @@
 
   MetadataAnnotation ensureResolved(Compiler compiler) {
     if (resolutionState == STATE_NOT_STARTED) {
       compiler.resolver.resolveMetadataAnnotation(this);
     }
     return this;
   }
 
   String toString() => 'MetadataAnnotation($value, $resolutionState)';
 }