Correctly reflect on intercepted classes.

dart/tests/lib/mirrors/intercepted_object_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.
+
+// Ensure that objects handled specially by dart2js can be reflected on.
+
+library test.intercepted_class_test;
+
+import 'dart:mirrors';
+
+import 'reflect_model_test.dart' show stringify, expect;
+
+import 'intercepted_class_test.dart' show checkClassMirror;
+
+checkObject(object, String name) {
+  checkClassMirror(reflect(object).type, name);
+}
+
+main() {
+  checkObject('', 'String');
+  checkObject(1, 'int');
+  checkObject(1.5, 'double');
+  checkObject(true, 'bool');
+  checkObject(false, 'bool');
+  checkObject([], 'List');
+}