Generate toFooElement() functions from tagname data

Source/core/html/HTMLObjectElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 93 matching lines @@
     virtual HTMLFormElement* virtualForm() const;
 
     virtual bool shouldRegisterAsNamedItem() const OVERRIDE { return isDocNamedItem(); }
     virtual bool shouldRegisterAsExtraNamedItem() const OVERRIDE { return isDocNamedItem(); }
 
     String m_classId;
     bool m_docNamedItem : 1;
     bool m_useFallbackContent : 1;
 };
 
-inline HTMLObjectElement* toHTMLObjectElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(HTMLNames::objectTag));
-    return static_cast<HTMLObjectElement*>(node);
-}
-
 }
 
 #endif