Bring back initPolymer, allow boot.js only if using "polymer_experimental.html".

pkg/polymer/e2e_test/good_import/test/import_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 todomvc.test.markdone_test;
+/// Tests how canonicalization works when using the deployed app.
+library canonicalization.bad_lib_import_negative;
 
-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 'package:polymer/polymer.dart';
 
-/**
- * A trivial test to get the analyzer plugged into this sample. See
- * searchable_list_test.dart.
- */
-@initMethod
+import 'package:good_import/a.dart';
 main() {
+  initPolymer();
   useHtmlConfiguration();
 
   setUp(() => Polymer.onReady);
 
-  test('loading the element', () {
-    return new Future(() {
-      var demoApp = querySelector('demo-app');
-      expect(demoApp is DemoApp, isTrue);
-    });
+  test('html import', () {
+    expect(a, 1, reason: 'html import is resolved correctly.');
   });
 }