Add FactoryNegativeTest.

tests/language/src/FactoryNegativeTest.dart

Index: tests/language/src/FactoryNegativeTest.dart
===================================================================
--- tests/language/src/FactoryNegativeTest.dart	(revision 0)
+++ tests/language/src/FactoryNegativeTest.dart	(revision 0)
@@ -0,0 +1,22 @@
+// Copyright (c) 2011, 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.
+
+// Test compile time error for factories with parametrized types.
+
+
+main() {
+  // Compile time error, wrong factory method.
+  var a = new Link<int>.create();
+}
+
+interface Link<T> factory LinkFactory {
+  Link.create();
+}
+
+class LinkFactory {
+  // Compile time error: should be Link<T>.create().
+  factory Link.create() {
+    return null;
+  }
+}