Add mirrors tests

test/codegen/lib/mirrors/closure_mirror_import2.dart

Index: test/codegen/lib/mirrors/closure_mirror_import2.dart
diff --git a/test/codegen/language/bootstrap_test.dart b/test/codegen/lib/mirrors/closure_mirror_import2.dart
similarity index 56%
copy from test/codegen/language/bootstrap_test.dart
copy to test/codegen/lib/mirrors/closure_mirror_import2.dart
index ba4e802cbcf65ac2584f95071d621d5ab5ecae26..9d09d365ee2a5662450ab01196c56dc527811be3 100644
--- a/test/codegen/language/bootstrap_test.dart
+++ b/test/codegen/lib/mirrors/closure_mirror_import2.dart
@@ -2,16 +2,7 @@
 // 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.
 
-class BootstrapTest {
+library closure_mirror_import2;
 
-  static testMain() {
-    var obj = new Object();
-
-    return obj;
-  }
-
-}
-
-main() {
-  BootstrapTest.testMain();
-}
+var firstGlobalVariableInImport2 = "firstGlobalVariableInImport2";
+var secondGlobalVariableInImport2 = "secondGlobalVariableInImport2";