Migrated test block 218 to Dart 2.0.

tests/lib/mirrors/closure_mirror_import2.dart

Index: tests/lib/mirrors/closure_mirror_import2.dart
diff --git a/tests/lib/mirrors/closure_mirror_import2.dart b/tests/lib/mirrors/closure_mirror_import2.dart
deleted file mode 100644
index 9d09d365ee2a5662450ab01196c56dc527811be3..0000000000000000000000000000000000000000
--- a/tests/lib/mirrors/closure_mirror_import2.dart
+++ /dev/null
@@ -1,8 +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.
-
-library closure_mirror_import2;
-
-var firstGlobalVariableInImport2 = "firstGlobalVariableInImport2";
-var secondGlobalVariableInImport2 = "secondGlobalVariableInImport2";