Add FileException.path and clean up file exceptions.

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 150 matching lines @@
     }
   }
 
   Future<Directory> createTemp() {
     _ensureDirectoryService();
     List request = new List(2);
     request[0] = CREATE_TEMP_REQUEST;
     request[1] = _path;
     return _directoryService.call(request).then((response) {
       if (_isErrorResponse(response)) {
-        throw _exceptionOrErrorFromResponse(response,
-                                      "Creation of temporary directory failed");
+        throw _exceptionOrErrorFromResponse(
+            response, "Creation of temporary directory failed");
       }
       return new Directory(response);
     });
   }
 
   Directory createTempSync() {
     if (_path is !String) {
       throw new ArgumentError();
     }
     var result = _createTemp(path);
     if (result is OSError) {
       throw new DirectoryException("Creation of temporary directory failed",
-                                     _path,
-                                     result);
+                                   _path,
+                                   result);
     }
     return new Directory(result);
   }
 
   Future<Directory> delete({recursive: false}) {
     _ensureDirectoryService();
     List request = new List(3);
     request[0] = DELETE_REQUEST;
     request[1] = _path;
     request[2] = recursive;
@@ skipping 228 matching lines @@
       controller.addError(
           new DirectoryException("Directory listing failed",
                                  errorPath,
                                  err));
     } else {
       controller.addError(
           new DirectoryException("Internal error"));
     }
   }
 }