Make sure required type arguments are given when using factories.

tests/language/factory_type_parameter2_test.dart

Index: tests/language/factory_type_parameter2_test.dart
diff --git a/tests/language/factory_type_parameter2_test.dart b/tests/language/factory_type_parameter2_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..fa067e1ea3dcab1870c530ac022e66f5768df9b9
--- /dev/null
+++ b/tests/language/factory_type_parameter2_test.dart
@@ -0,0 +1,29 @@
+// Copyright (c) 2013, 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 that type variables are correctly set in instances created by factories.
+
+var p;
+bool done = false;
+
+class D {}
+
+abstract class I<T> {
+  factory I.name() {
+    return new C<T>.name();
+  }
+}
+
+class C<T> implements I<T> {
+  C.name() {
+    Expect.isTrue(p is T);
+    done = true;
+  }
+}
+
+main() {
+  p = new D();
+  new I<D>.name();
+  Expect.equals(true, done);
+}