Kill WTF::DecimalNumber class

Source/wtf/text/WTFString.h

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 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,
@@ skipping 268 matching lines @@
     bool endsWith(const String& s, bool caseSensitive = true) const
         { return m_impl ? m_impl->endsWith(s.impl(), caseSensitive) : s.isEmpty(); }
     bool endsWith(UChar character) const
         { return m_impl ? m_impl->endsWith(character) : false; }
     template<unsigned matchLength>
     bool endsWith(const char (&prefix)[matchLength], bool caseSensitive = true) const
         { return m_impl ? m_impl->endsWith<matchLength>(prefix, caseSensitive) : !matchLength; }
 
     void append(const String&);
     void append(LChar);
-    void append(char c) { append(static_cast<LChar>(c)); };
+    void append(char c) { append(static_cast<LChar>(c)); }
     void append(UChar);
     void append(const LChar*, unsigned length);
+    void append(const char* charactersToAppend, unsigned length) { append(reinterpret_cast<const LChar*>(charactersToAppend), length); }
     void append(const UChar*, unsigned length);
     void insert(const String&, unsigned pos);
     void insert(const LChar*, unsigned length, unsigned pos);
     void insert(const UChar*, unsigned length, unsigned pos);
 
     String& replace(UChar a, UChar b) { if (m_impl) m_impl = m_impl->replace(a, b); return *this; }
     String& replace(UChar a, const String& b) { if (m_impl) m_impl = m_impl->replace(a, b.impl()); return *this; }
     String& replace(const String& a, const String& b) { if (m_impl) m_impl = m_impl->replace(a.impl(), b.impl()); return *this; }
     String& replace(unsigned index, unsigned len, const String& b) { if (m_impl) m_impl = m_impl->replace(index, len, b.impl()); return *this; }
 
@@ skipping 398 matching lines @@
 using WTF::charactersToFloat;
 using WTF::equal;
 using WTF::equalIgnoringCase;
 using WTF::find;
 using WTF::isAllSpecialCharacters;
 using WTF::isSpaceOrNewline;
 using WTF::reverseFind;
 
 #include "wtf/text/AtomicString.h"
 #endif // WTFString_h