Amusingly deprecate the generic version of 'ExceptionState::throwDOMException'.

Source/core/events/EventTarget.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 140 matching lines @@
 {
     EventListener* listener = getAttributeEventListener(eventType, isolatedWorld);
     if (!listener)
         return false;
     return removeEventListener(eventType, listener, false);
 }
 
 bool EventTarget::dispatchEvent(PassRefPtr<Event> event, ExceptionState& es)
 {
     if (!event || event->type().isEmpty() || event->isBeingDispatched()) {
-        es.throwDOMException(InvalidStateError);
+        es.throwUninformativeAndGenericDOMException(InvalidStateError);
         return false;
     }
 
     if (!scriptExecutionContext())
         return false;
 
     return dispatchEvent(event);
 }
 
 bool EventTarget::dispatchEvent(PassRefPtr<Event> event)
@@ skipping 185 matching lines @@
     // they have one less listener to invoke.
     if (d->firingEventIterators) {
         for (size_t i = 0; i < d->firingEventIterators->size(); ++i) {
             d->firingEventIterators->at(i).iterator = 0;
             d->firingEventIterators->at(i).end = 0;
         }
     }
 }
 
 } // namespace WebCore