Add mirrors tests

test/codegen/lib/mirrors/static_members_easier_test.dart

+// 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 test.static_members;
+
+import 'dart:mirrors';
+import 'package:expect/expect.dart';
+
+import 'stringify.dart';
+import 'declarations_model_easier.dart' as declarations_model;
+
+selectKeys(map, predicate) {
+  return map.keys.where((key) => predicate(map[key]));
+}
+
+main() {
+  ClassMirror cm = reflectClass(declarations_model.Class);
+  LibraryMirror lm = cm.owner;
+
+  Expect.setEquals(
+    [#staticVariable,
+     const Symbol('staticVariable='),
+     #staticGetter,
+     const Symbol('staticSetter='),
+     #staticMethod,
+     ],
+    selectKeys(cm.staticMembers, (dm) => true));
+
+  Expect.setEquals(
+    [#staticVariable,
+     const Symbol('staticVariable=')],
+    selectKeys(cm.staticMembers, (dm) => dm.isSynthetic));
+}