Restructure pkg/unittest and pkg/webdriver to follow the pub conventions.

pkg/intl/test/date_time_format_file_odd_test.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Tests date formatting and parsing using locale data read from the
  * local file system. This tests one half the locales, since testing all
  * of them takes long enough that it may cause timeouts in the test bots.
  */
 
-#library('date_time_format_file_test_1');
-#import('date_time_format_file_test_stub.dart');
-#import('date_time_format_test_core.dart');
+library date_time_format_file_test_1;
+import 'date_time_format_file_test_stub.dart';
+import 'date_time_format_test_core.dart';
 
 main() {
   runWith(oddLocales);
 }