Make reflectClassByName work with interceptor names.

tests/compiler/dart2js_extra/reflect_native_types_test.dart

Index: tests/compiler/dart2js_extra/reflect_native_types_test.dart
diff --git a/tests/compiler/dart2js_extra/reflect_native_types_test.dart b/tests/compiler/dart2js_extra/reflect_native_types_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..eb2cb355003063cc7161853ecccdedb3ca7255f1
--- /dev/null
+++ b/tests/compiler/dart2js_extra/reflect_native_types_test.dart
@@ -0,0 +1,22 @@
+// Copyright (c) 2014, 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.
+
+// Test that reflection works on intercepted types.
+
+import 'dart:mirrors';
+import 'package:expect/expect.dart';
+
+main() {
+  // Make sure that reflecting on values of intercepted/native classes does
+  // not crash.
+  var intMembers = reflect(123).type.instanceMembers;
+  Expect.isTrue(intMembers.containsKey(#compareTo));
+  Expect.isTrue(intMembers.length > 15);
+  var listMembers = reflect([]).type.instanceMembers;
+  Expect.isTrue(listMembers.containsKey(#join));
+  Expect.isTrue(listMembers.length > 15);
+  var stringMembers = reflect('hest').type.instanceMembers;
+  Expect.isTrue(stringMembers.containsKey(#contains));
+  Expect.isTrue(stringMembers.length > 15);
+}