Remove tracking of factories used with type arguments.

pkg/compiler/lib/src/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;
 
 class SsaFunctionCompiler implements FunctionCompiler {
   SsaCodeGeneratorTask generator;
   SsaBuilderTask builder;
   SsaOptimizerTask optimizer;
@@ skipping 4287 matching lines @@
     // TODO(5347): Try to avoid the need for calling [implementation] before
     // calling [makeStaticArgumentList].
     if (!selector.applies(constructor.implementation, compiler.world)) {
       generateWrongArgumentCountError(send, constructor, send.arguments);
       return;
     }
     inputs.addAll(makeStaticArgumentList(selector,
                                          send.arguments,
                                          constructor.implementation));
 
-    if (constructor.isFactoryConstructor &&
-        !expectedType.typeArguments.isEmpty) {
-      registry.registerFactoryWithTypeArguments();
-    }
-
     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.Template code = js.js.parseForeignJS('Array(#)');
@@ skipping 1088 matching lines @@
     assert(constructor.isFactoryConstructor);
 
     ConstructorElement functionElement = constructor;
     constructor = functionElement.effectiveTarget;
 
     InterfaceType type = elements.getType(node);
     InterfaceType expectedType =
         functionElement.computeEffectiveTargetType(type);
     expectedType = localsHandler.substInContext(expectedType);
 
-    if (constructor.isFactoryConstructor) {
-      registry.registerFactoryWithTypeArguments();
-    }
-
     ClassElement cls = constructor.enclosingClass;
 
     if (backend.classNeedsRti(cls)) {
       List<DartType> typeVariable = cls.typeVariables;
       expectedType.typeArguments.forEach((DartType argument) {
         inputs.add(analyzeTypeArgument(argument));
       });
     }
 
     // The instruction type will always be a subtype of the mapLiteralClass, but
@@ skipping 1209 matching lines @@
     if (unaliased is TypedefType) throw 'unable to unalias $type';
     unaliased.accept(this, builder);
   }
 
   void visitDynamicType(DynamicType type, SsaBuilder builder) {
     JavaScriptBackend backend = builder.compiler.backend;
     ClassElement cls = backend.findHelper('DynamicRuntimeType');
     builder.push(new HDynamicType(type, new TypeMask.exact(cls, classWorld)));
   }
 }