Fix finalization of recursive type graph with bounds (issue 25389).

tests/language/regress_25389_test.dart

 // Copyright (c) 2016, 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.
+// VMOptions=--error-on-bad-type
 
-import "package:expect/expect.dart";
+library regress_25389;
 
-class A<T> {}
+part 'regress_25389_part.dart';
 
-class C<T> {
-  a() {
-    return () => new A<T>();
-  }
+main() {
+  new IssueListEditorState();
 }
 
-main() {
-  Expect.isTrue(new C<int>().a()() is A<int>);
-  Expect.isFalse(new C<int>().a()() is A<String>);
-}
+abstract class AbstractListEditor<D, S extends AbstractListEditorState<D, S>> {}
+