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

Source/wtf/HashMap.h

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2011 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 414 matching lines @@
     }
 
     template<typename T, typename U, typename V, typename W, typename X>
     bool operator==(const HashMap<T, U, V, W, X>& a, const HashMap<T, U, V, W, X>& b)
     {
         if (a.size() != b.size())
             return false;
 
         typedef typename HashMap<T, U, V, W, X>::const_iterator const_iterator;
 
-        const_iterator end = a.end();
-        const_iterator notFound = b.end();
-        for (const_iterator it = a.begin(); it != end; ++it) {
+        const_iterator aEnd = a.end();
+        const_iterator bEnd = b.end();
+        for (const_iterator it = a.begin(); it != aEnd; ++it) {
             const_iterator bPos = b.find(it->key);
-            if (bPos == notFound || it->value != bPos->value)
+            if (bPos == bEnd || it->value != bPos->value)
                 return false;
         }
 
         return true;
     }
 
     template<typename T, typename U, typename V, typename W, typename X>
     inline bool operator!=(const HashMap<T, U, V, W, X>& a, const HashMap<T, U, V, W, X>& b)
     {
         return !(a == b);
@@ skipping 43 matching lines @@
             vector[i] = *it;
     }
 
 } // namespace WTF
 
 using WTF::HashMap;
 
 #include "wtf/RefPtrHashMap.h"
 
 #endif /* WTF_HashMap_h */