Add mirrors tests

test/codegen/lib/mirrors/library_metadata2_test.dart

Index: test/codegen/lib/mirrors/library_metadata2_test.dart
diff --git a/test/codegen/lib/mirrors/library_metadata2_test.dart b/test/codegen/lib/mirrors/library_metadata2_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..8c4000cc58d06c3465d18e4ee53b30175f82b1e5
--- /dev/null
+++ b/test/codegen/lib/mirrors/library_metadata2_test.dart
@@ -0,0 +1,16 @@
+// 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.
+
+import 'dart:mirrors';
+
+import 'library_metadata2_lib1.dart';
+
+import 'library_metadata2_lib2.dart'; /// 01: compile-time error
+
+void main() {
+  for (var library in currentMirrorSystem().libraries.values) {
+    print(library.metadata);  // Processing @MyConst() in lib2 results in a
+                              // delayed compilation error here.
+  }
+}