Add mirrors tests

test/codegen/lib/mirrors/library_with_annotated_declaration.dart

Index: test/codegen/lib/mirrors/library_with_annotated_declaration.dart
diff --git a/test/codegen/language/constructor_name_clash_lib.dart b/test/codegen/lib/mirrors/library_with_annotated_declaration.dart
similarity index 62%
copy from test/codegen/language/constructor_name_clash_lib.dart
copy to test/codegen/lib/mirrors/library_with_annotated_declaration.dart
index 46ea6c0b3c621fcd1827750c10de66980b5b3057..eeff40d1df7840971fc77fe189c52c493f0abfba 100644
--- a/test/codegen/language/constructor_name_clash_lib.dart
+++ b/test/codegen/lib/mirrors/library_with_annotated_declaration.dart
@@ -2,13 +2,9 @@
 // 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 lib;
+@metadata
+library library_with_annotated_declaration;
 
-var global = 0;
+const metadata = 'metadata';
 
-class A {
-  A() {
-    global += 10;
-    try {} catch(e) {} // no inline
-  }
-}
+class ClassInLibraryWithAnnotatedDeclaration {}