Generate toFooElement() functions from tagname data

Source/core/html/HTMLTableElement.h

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008 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
@@ skipping 93 matching lines @@
 inline bool isHTMLTableElement(const Node* node)
 {
     return node->hasTagName(HTMLNames::tableTag);
 }
 
 inline bool isHTMLTableElement(const Element* element)
 {
     return element->hasTagName(HTMLNames::tableTag);
 }
 
-inline HTMLTableElement* toHTMLTableElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLTableElement(node));
-    return static_cast<HTMLTableElement*>(node);
-}
-
 } //namespace
 
 #endif