dart:io | Add .stat() and .statSync() to FileSystemEntity and subclasses File, Directory, and Link.

sdk/lib/io/directory_impl.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.
 
 part of dart.io;
 
 class _Directory implements Directory {
   static const CREATE_REQUEST = 0;
   static const DELETE_REQUEST = 1;
   static const EXISTS_REQUEST = 2;
@@ skipping 43 matching lines @@
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _exists(_path);
     if (result is OSError) {
       throw new DirectoryIOException("Exists failed", _path, result);
     }
     return (result == 1);
   }
 
+  Future<FileStat> stat() => FileStat.stat(path);
+
+  FileStat statSync() => FileStat.statSync(path);
+
   // Compute the index of the first directory in the list that exists. If
   // none of the directories exist dirsToCreate.length is returned.
   Future<int> _computeExistingIndex(List dirsToCreate) {
     var future;
     var notFound = dirsToCreate.length;
     for (var i = 0; i < dirsToCreate.length; i++) {
       if (future == null) {
         future = dirsToCreate[i].exists().then((e) => e ? i : notFound);
       } else {
         future = future.then((index) {
@@ skipping 257 matching lines @@
 
   void _ensureDirectoryService() {
     if (_directoryService == null) {
       _directoryService = _newServicePort();
     }
   }
 
   final String _path;
   SendPort _directoryService;
 }