Migrated test lock 217 to Dart 2.0.

tests/lib/mirrors/abstract_test.dart

Index: tests/lib/mirrors/abstract_test.dart
diff --git a/tests/lib/mirrors/abstract_test.dart b/tests/lib/mirrors/abstract_test.dart
deleted file mode 100644
index 731587a55317a5e1c7437166aef1777fbcaed4ec..0000000000000000000000000000000000000000
--- a/tests/lib/mirrors/abstract_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// 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 abstract classes are retained.
-
-library test.abstract_test;
-
-@MirrorsUsed(targets: "test.abstract_test")
-import 'dart:mirrors';
-
-import 'stringify.dart';
-
-abstract class Foo {}
-
-void main() {
-  expect(
-      'Class(s(Foo) in s(test.abstract_test), top-level)', reflectClass(Foo));
-}