WTF::notFound looks too much like a local variable.

Source/core/xml/XPathParser.cpp

 /*
  * Copyright 2005 Maksim Orlovich <maksim@kde.org>
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 433 matching lines @@
         registerString(yylval->str);
         break;
     }
 
     return tok.type;
 }
 
 bool Parser::expandQName(const String& qName, String& localName, String& namespaceURI)
 {
     size_t colon = qName.find(':');
-    if (colon != notFound) {
+    if (colon != kNotFound) {
         if (!m_resolver)
             return false;
         namespaceURI = m_resolver->lookupNamespaceURI(qName.left(colon));
         if (namespaceURI.isNull())
             return false;
         localName = qName.substring(colon + 1);
     } else
         localName = qName;
 
     return true;
@@ skipping 155 matching lines @@
 {
     if (t == 0)
         return;
 
     ASSERT(m_nodeTests.contains(t));
 
     m_nodeTests.remove(t);
     delete t;
 }