Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_MessagePortWrappingImplementation.dart

-// Copyright (c) 2011, 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.
-
-// WARNING: Do not edit - generated code.
-
-class _MessagePortWrappingImplementation extends DOMWrapperBase implements MessagePort {
-  _MessagePortWrappingImplementation() : super() {}
-
-  static create__MessagePortWrappingImplementation() native {
-    return new _MessagePortWrappingImplementation();
-  }
-
-  void addEventListener(String type, EventListener listener, [bool useCapture = null]) {
-    if (useCapture === null) {
-      _addEventListener_MessagePort(this, type, listener);
-      return;
-    } else {
-      _addEventListener_MessagePort_2(this, type, listener, useCapture);
-      return;
-    }
-  }
-  static void _addEventListener_MessagePort(receiver, type, listener) native;
-  static void _addEventListener_MessagePort_2(receiver, type, listener, useCapture) native;
-
-  void close() {
-    _close(this);
-    return;
-  }
-  static void _close(receiver) native;
-
-  bool dispatchEvent(Event evt) {
-    return _dispatchEvent_MessagePort(this, evt);
-  }
-  static bool _dispatchEvent_MessagePort(receiver, evt) native;
-
-  void postMessage(String message, [List messagePorts = null]) {
-    if (messagePorts === null) {
-      _postMessage(this, message);
-      return;
-    } else {
-      _postMessage_2(this, message, messagePorts);
-      return;
-    }
-  }
-  static void _postMessage(receiver, message) native;
-  static void _postMessage_2(receiver, message, messagePorts) native;
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) {
-    if (useCapture === null) {
-      _removeEventListener_MessagePort(this, type, listener);
-      return;
-    } else {
-      _removeEventListener_MessagePort_2(this, type, listener, useCapture);
-      return;
-    }
-  }
-  static void _removeEventListener_MessagePort(receiver, type, listener) native;
-  static void _removeEventListener_MessagePort_2(receiver, type, listener, useCapture) native;
-
-  void start() {
-    _start(this);
-    return;
-  }
-  static void _start(receiver) native;
-
-  void webkitPostMessage(String message, [List transfer = null]) {
-    if (transfer === null) {
-      _webkitPostMessage(this, message);
-      return;
-    } else {
-      _webkitPostMessage_2(this, message, transfer);
-      return;
-    }
-  }
-  static void _webkitPostMessage(receiver, message) native;
-  static void _webkitPostMessage_2(receiver, message, transfer) native;
-
-  String get typeName() { return "MessagePort"; }
-}