Remove tracking of factories with type arguments.

sdk/lib/_internal/compiler/implementation/ssa/builder.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 ssa;
 
 /**
  * A special element for the extra parameter taken by intercepted
  * methods. We need to override [Element.computeType] because our
  * optimizers may look at its declared type.
@@ skipping 4070 matching lines @@
     // TODO(5347): Try to avoid the need for calling [implementation] before
     // calling [addStaticSendArgumentsToList].
     bool succeeded = addStaticSendArgumentsToList(selector, send.arguments,
                                                   constructor.implementation,
                                                   inputs);
     if (!succeeded) {
       generateWrongArgumentCountError(send, constructor, send.arguments);
       return;
     }
 
-    if (constructor.isFactoryConstructor() &&
-        !expectedType.typeArguments.isEmpty) {
-      compiler.enqueuer.codegen.registerFactoryWithTypeArguments(elements);
-    }
-
     TypeMask elementType = computeType(constructor);
     if (isFixedListConstructorCall) {
       if (!inputs[0].isNumber(compiler)) {
         HTypeConversion conversion = new HTypeConversion(
           null, HTypeConversion.ARGUMENT_TYPE_CHECK, backend.numType,
           inputs[0], null);
         add(conversion);
         inputs[0] = conversion;
       }
       js.Expression code = js.js.parseForeignJS('Array(#)');
@@ skipping 2292 matching lines @@
     DartType unaliased = type.unalias(builder.compiler);
     if (unaliased is TypedefType) throw 'unable to unalias $type';
     unaliased.accept(this, builder);
   }
 
   void visitDynamicType(DynamicType type, SsaFromAstMixin builder) {
     ClassElement cls = builder.compiler.findHelper('DynamicRuntimeType');
     builder.push(new HDynamicType(type, new TypeMask.exact(cls)));
   }
 }