Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_EventSourceWrappingImplementation.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 _EventSourceWrappingImplementation extends DOMWrapperBase implements EventSource {
-  _EventSourceWrappingImplementation() : super() {}
-
-  static create__EventSourceWrappingImplementation() native {
-    return new _EventSourceWrappingImplementation();
-  }
-
-  String get URL() { return _get_URL(this); }
-  static String _get_URL(var _this) native;
-
-  int get readyState() { return _get_readyState(this); }
-  static int _get_readyState(var _this) native;
-
-  String get url() { return _get_url(this); }
-  static String _get_url(var _this) native;
-
-  void addEventListener(String type, EventListener listener, [bool useCapture = null]) {
-    if (useCapture === null) {
-      _addEventListener_EventSource(this, type, listener);
-      return;
-    } else {
-      _addEventListener_EventSource_2(this, type, listener, useCapture);
-      return;
-    }
-  }
-  static void _addEventListener_EventSource(receiver, type, listener) native;
-  static void _addEventListener_EventSource_2(receiver, type, listener, useCapture) native;
-
-  void close() {
-    _close(this);
-    return;
-  }
-  static void _close(receiver) native;
-
-  bool dispatchEvent(Event evt) {
-    return _dispatchEvent_EventSource(this, evt);
-  }
-  static bool _dispatchEvent_EventSource(receiver, evt) native;
-
-  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) {
-    if (useCapture === null) {
-      _removeEventListener_EventSource(this, type, listener);
-      return;
-    } else {
-      _removeEventListener_EventSource_2(this, type, listener, useCapture);
-      return;
-    }
-  }
-  static void _removeEventListener_EventSource(receiver, type, listener) native;
-  static void _removeEventListener_EventSource_2(receiver, type, listener, useCapture) native;
-
-  String get typeName() { return "EventSource"; }
-}