Fix some bad documentation links.

sdk/lib/io/websocket.dart

 // Copyright (c) 2013, 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;
 
 /**
  * WebSocket status codes used when closing a WebSocket connection.
  */
 abstract class WebSocketStatus {
@@ skipping 311 matching lines @@
       ' instead of `extends` if implementing this abstract class.')
   WebSocket();
 
   /**
    * Creates a WebSocket from an already-upgraded socket.
    *
    * The initial WebSocket handshake must have occurred prior to this call. A
    * WebSocket client can automatically perform the handshake using
    * [WebSocket.connect], while a server can do so using
    * [WebSocketTransformer.upgrade]. To manually upgrade an [HttpRequest],
-   * [HttpRequest.detachSocket] may be called.
+   * [HttpResponse.detachSocket] may be called.
    *
    * [protocol] should be the protocol negotiated by this handshake, if any.
    *
    * [serverSide] must be passed explicitly. If it's `false`, the WebSocket will
    * act as the client and mask the messages it sends. If it's `true`, it will
    * act as the server and will not mask its messages.
    *
    * If [compression] is provided, the [WebSocket] created will be configured
    * to negotiate with the specified [CompressionOptions]. If none is specified
    * then the [WebSocket] will be created with the default [CompressionOptions].
@@ skipping 72 matching lines @@
   void addUtf8Text(List<int> bytes);
 }
 
 class WebSocketException implements IOException {
   final String message;
 
   const WebSocketException([this.message = ""]);
 
   String toString() => "WebSocketException: $message";
 }