Change intl to use new pub layout

pkg/intl/test/date_time_format_file_test_stub.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.
  */
 
 #library('date_time_format_file_test');
 
-#import('../date_format.dart');
-#import('../date_symbol_data_file.dart');
+#import('../lib/date_format.dart');
+#import('../lib/date_symbol_data_file.dart');
 #import('dart:io');
 #import('date_time_format_test_core.dart');
 #import('data_directory.dart');
 
 runWith([Function getSubset]) {
   // Initialize one locale just so we know what the list is.
   initializeDateFormatting("en_US", dataDirectory).then(
       (_) => runEverything(getSubset));
 }
 
 void runEverything(Function getSubset) {
   // Initialize all locales and wait for them to finish before running tests.
   var futures = DateFormat.allLocalesWithSymbols().map(
       (locale) => initializeDateFormatting(locale, dataDirectory));
   Futures.wait(futures).then((results) => runDateTests(getSubset()));
 }