Make sure required type arguments are given when using factories.

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 3339 matching lines @@
         typeVariable = typeVariable.tail;
       });
       // Also add null to non-provided type variables to call the
       // constructor with the right number of arguments.
       while (!typeVariable.isEmpty) {
         inputs.add(graph.addConstantNull(constantSystem));
         typeVariable = typeVariable.tail;
       }
     }
 
+    if (constructor.isFactoryConstructor() && !type.typeArguments.isEmpty) {
+      compiler.enqueuer.codegen.registerFactoryWithTypeArguments(elements);
+    }
     HType elementType = computeType(constructor);
     HInstruction newInstance = new HInvokeStatic(inputs, elementType);
     pushWithPosition(newInstance, node);
 
     // The List constructor forwards to a Dart static method that does
     // not know about the type argument. Therefore we special case
     // this constructor to have the setRuntimeTypeInfo called where
     // the 'new' is done.
     if (isListConstructor && backend.needsRti(compiler.listClass)) {
       handleListConstructor(type, node, newInstance);
@@ skipping 1791 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }