Retain abstract classes.

dart/tests/lib/mirrors/abstract_test.dart

Index: dart/tests/lib/mirrors/abstract_test.dart
diff --git a/dart/samples/tests/samples/browser/spirodraw_test.dart b/dart/tests/lib/mirrors/abstract_test.dart
similarity index 50%
copy from dart/samples/tests/samples/browser/spirodraw_test.dart
copy to dart/tests/lib/mirrors/abstract_test.dart
index 2e6e5586cea32655f696a34410febbc6c139b9f9..39923639e08b8a559e2de07d8e825a78c6a994eb 100644
--- a/dart/samples/tests/samples/browser/spirodraw_test.dart
+++ b/dart/tests/lib/mirrors/abstract_test.dart
@@ -2,16 +2,18 @@
 // 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.
 
-library spirodraw_test;
+// Test abstract classes are retained.
 
-import '../../../spirodraw/web/spirodraw.dart' as spirodraw;
+library test.abstract_test;
 
-// @static-clean
+import 'dart:mirrors';
 
-/**
- * This test exists to ensure that the spirodraw sample compiles without errors.
- */
-void main() {
-  
+import 'stringify.dart';
+
+abstract class Foo {
 }
 
+void main() {
+  expect('Class(s(Foo) in s(test.abstract_test), top-level)',
+         reflectClass(Foo));
+}