dart2js cps: Support inlining constructors with type arguments.

pkg/compiler/lib/src/tree_ir/tree_ir_builder.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 tree_ir_builder;
 
 import '../common.dart';
 import '../constants/values.dart';
 import '../cps_ir/cps_ir_nodes.dart' as cps_ir;
 import '../elements/elements.dart';
@@ skipping 484 matching lines @@
   }
 
   Expression visitInterceptor(cps_ir.Interceptor node) {
     return new Interceptor(getVariableUse(node.input),
                            node.interceptedClasses,
                            node.sourceInformation);
   }
 
   Expression visitCreateInstance(cps_ir.CreateInstance node) {
     return new CreateInstance(
-        node.classElement,
+        node.dartType,
         translateArguments(node.arguments),
         translateArguments(node.typeInformation),
         node.sourceInformation);
   }
 
   Expression visitGetField(cps_ir.GetField node) {
     return new GetField(getVariableUse(node.object), node.field,
         objectIsNotNull: !node.object.definition.type.isNullable);
   }
 
@@ skipping 232 matching lines @@
 
   visitFunctionDefinition(cps_ir.FunctionDefinition node) {
     unexpectedNode(node);
   }
   visitParameter(cps_ir.Parameter node) => unexpectedNode(node);
   visitContinuation(cps_ir.Continuation node) => unexpectedNode(node);
   visitMutableVariable(cps_ir.MutableVariable node) => unexpectedNode(node);
   visitRethrow(cps_ir.Rethrow node) => unexpectedNode(node);
   visitBoundsCheck(cps_ir.BoundsCheck node) => unexpectedNode(node);
 }