Handle super-method invocations in CPS->JS backend.

pkg/compiler/lib/src/compiler.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 dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 151 matching lines @@
   }
 
   void registerStaticInvocation(Element element) {
     world.registerStaticUse(element);
   }
 
   void registerSuperInvocation(Element element) {
     world.registerStaticUse(element);
   }
 
+  void registerDirectInvocation(Element element) {
+    world.registerStaticUse(element);
+  }
+
   void registerInstantiation(InterfaceType type) {
     world.registerInstantiatedType(type, this);
   }
 }
 
 /// [WorkItem] used exclusively by the [CodegenEnqueuer].
 class CodegenWorkItem extends WorkItem {
   Registry registry;
   final TreeElements resolutionTree;
 
@@ skipping 2202 matching lines @@
   InterfaceType get nullType => nullClass.computeType(compiler);
 
   @override
   InterfaceType get numType => numClass.computeType(compiler);
 
   @override
   InterfaceType get stringType =>  stringClass.computeType(compiler);
 }
 
 typedef void InternalErrorFunction(Spannable location, String message);