Remove tracking of factories used with type arguments.

pkg/compiler/lib/src/universe/universe.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 universe;
 
 import '../elements/elements.dart';
 import '../dart2jslib.dart';
 import '../dart_types.dart';
 import '../types/types.dart';
@@ skipping 75 matching lines @@
    * to find all live closure instances.
    */
   final Set<LocalFunctionElement> allClosures = new Set<LocalFunctionElement>();
 
   /**
    * Set of methods in instantiated classes that are potentially
    * closurized.
    */
   final Set<Element> closurizedMembers = new Set<Element>();
 
-  bool usingFactoryWithTypeArguments = false;
-
   /// All directly instantiated classes, that is, classes with a generative
   /// constructor that has been called directly and not only through a
   /// super-call.
   // TODO(johnniwinther): Improve semantic precision.
   Iterable<ClassElement> get directlyInstantiatedClasses {
     return _directlyInstantiatedClasses;
   }
 
   /// All instantiated classes, either directly, as superclasses or as
   /// supertypes.
@@ skipping 732 matching lines @@
 
   Selector extendIfReachesAll(Compiler compiler) {
     bool canReachAll = compiler.enabledInvokeOn
         && mask.needsNoSuchMethodHandling(this, compiler.world);
     return canReachAll
         ? new TypedSelector(
             compiler.typesTask.dynamicType, this, compiler.world)
         : this;
   }
 }