dart2js: Register helpers for updating send to type variable.

pkg/compiler/lib/src/resolution/registry.dart

 // Copyright (c) 2014, 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 dart2js.resolution.registry;
 
 import '../common/backend_api.dart' show
     Backend;
 import '../common/registry.dart' show
     Registry;
@@ skipping 437 matching lines @@
   }
 
   void registerDynamicInvocation(UniverseSelector selector) {
     worldImpact.registerDynamicInvocation(selector);
   }
 
   void registerSuperNoSuchMethod() {
     backend.resolutionCallbacks.onSuperNoSuchMethod(this);
   }
 
-  void registerClassUsingVariableExpression(ClassElement element) {
-    backend.registerClassUsingVariableExpression(element);
-  }
-
-  void registerTypeVariableExpression() {
-    backend.resolutionCallbacks.onTypeVariableExpression(this);
+  void registerTypeVariableExpression(TypeVariableElement element) {
+    backend.resolutionCallbacks.onTypeVariableExpression(this, element);
   }
 
   void registerTypeLiteral(Send node, DartType type) {
     mapping.setType(node, type);
     backend.resolutionCallbacks.onTypeLiteral(type, this);
     world.registerInstantiatedType(compiler.coreTypes.typeType, this);
   }
 
   void registerMapLiteral(Node node, DartType type, bool isConstant) {
     setType(node, type);
@@ skipping 137 matching lines @@
   }
 
   void registerIncDecOperation() {
     backend.resolutionCallbacks.onIncDecOperation(this);
   }
 
   void registerTryStatement() {
     mapping.containsTryStatement = true;
   }
 }