Remove tracking of factories with type arguments.

sdk/lib/_internal/compiler/implementation/enqueue.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;
 
 typedef ItemCompilationContext ItemCompilationContextCreator();
 
 class EnqueueTask extends CompilerTask {
   final ResolutionEnqueuer resolution;
@@ skipping 477 matching lines @@
   void registerIsCheck(DartType type, TreeElements elements) {
     type = universe.registerIsCheck(type, compiler);
     // Even in checked mode, type annotations for return type and argument
     // types do not imply type checks, so there should never be a check
     // against the type variable of a typedef.
     assert(type.kind != TypeKind.TYPE_VARIABLE ||
            !type.element.enclosingElement.isTypedef());
     compiler.backend.registerIsCheck(type, this, elements);
   }
 
-  /**
-   * If a factory constructor is used with type arguments, we lose track
-   * which arguments could be used to create instances of classes that use their
-   * type variables as expressions, so we have to remember if we saw such a use.
-   */
-  void registerFactoryWithTypeArguments(TreeElements elements) {
-    universe.usingFactoryWithTypeArguments = true;
-  }
-
   void registerAsCheck(DartType type, TreeElements elements) {
     registerIsCheck(type, elements);
     compiler.backend.registerAsCheck(type, this, elements);
   }
 
   void registerGenericCallMethod(Element element, TreeElements elements) {
     compiler.backend.registerGenericCallMethod(element, this, elements);
     universe.genericCallMethods.add(element);
   }
 
@@ skipping 233 matching lines @@
     }
     CodegenWorkItem workItem = new CodegenWorkItem(
         element, itemCompilationContextCreator());
     queue.add(workItem);
   }
 
   void _logSpecificSummary(log(message)) {
     log('Compiled ${generatedCode.length} methods.');
   }
 }