Adds a sample for polymer internationalization/localization

samples/polymer_intl/test/polymer_intl_test.dart

Index: samples/polymer_intl/test/polymer_intl_test.dart
diff --git a/samples/searchable_list/test/demo_app_test.dart b/samples/polymer_intl/test/polymer_intl_test.dart
similarity index 78%
copy from samples/searchable_list/test/demo_app_test.dart
copy to samples/polymer_intl/test/polymer_intl_test.dart
index 564cef3f72ac0b6949245ceab4809c95d84a3cd6..7e82a2f52653ba751f1fda6a3a9bfd4e625ccd52 100644
--- a/samples/searchable_list/test/demo_app_test.dart
+++ b/samples/polymer_intl/test/polymer_intl_test.dart
@@ -2,14 +2,14 @@
 // 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 todomvc.test.markdone_test;
+library polymer_intl_test;
 
 import 'dart:async';
 import 'dart:html';
 import 'package:polymer/polymer.dart';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
-import '../web/elements/demo_app.dart';
+import '../web/localized.dart';
 
 /**
  * A trivial test to get the analyzer plugged into this sample. See
@@ -23,8 +23,8 @@ main() {
 
   test('loading the element', () {
     return new Future(() {
-      var demoApp = querySelector('demo-app');
-      expect(demoApp is DemoApp, isTrue);
+      var localized = querySelector('localized-example');
+      expect(localized is LocalizedExampleElement, isTrue);
     });
   });
 }