Code cleanup (mostly io lib and some http lib).

sdk/lib/io/directory.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;
 
 /**
  * A reference to a directory (or _folder_) on the file system.
  */
 abstract class Directory implements FileSystemEntity {
   /**
+   * Gets the path of this directory.
+   */
+  final String path;
+
+  /**
    * Creates a directory object. The path is either an absolute path,
    * or it is a relative path which is interpreted relative to the directory
    * in which the Dart VM was started.
    */
   factory Directory(String path) => new _Directory(path);
 
   /**
    * Create a Directory object from a URI.
    *
    * If [uri] cannot reference a directory this throws [UnsupportedError].
@@ skipping 159 matching lines @@
    * Returns a [List] containing [FileSystemEntity] objects for the
    * directories, files, and links.
    */
   List<FileSystemEntity> listSync({bool recursive: false,
                                    bool followLinks: true});
 
   /**
    * Returns a human readable string for this Directory instance.
    */
   String toString();
-
-  /**
-   * Gets the path of this directory.
-   */
-  final String path;
 }