Check for cyclicity in named mixin applications.

tests/language/mixin_implements2_test.dart

 // 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.
 
-import '../../../time/time_server.dart' as time;
+// Regression test for named mixin applications with implements clause.
 
-// @static-clean
+class A {}
 
-/**
- * This test exists to ensure that the time sample compiles without errors.
- */
+class S {}
+class M {}
+
+typedef C = S with M implements A;
+
 void main() {
-
+  new C();
 }