CppTools.lib(CppTools.dll) : error LNK2005: "public: virtual __thiscall
  QFutureInterface<class TextEditor::HighlightingResult>::~QFutureInterface<class TextEditor::HighlightingResult>(void)"
  (??1?$QFutureInterface@VHighlightingResult@TextEditor@@@@UAE@XZ) already defined in moc_cppeditor.obj
   Creating library ..\..\..\lib\qtcreator\plugins\QtProject\CppEditor.lib and object
   ..\..\..\lib\qtcreator\plugins\QtProject\CppEditor.exp..\..\..\lib\qtcreator\plugins\QtProject\CppEditor.dll :
   fatal error LNK1169: one or more multiply defined symbols found

Change-Id: Id53a0f8a99dbd18a9cbdf2af57b4f3970f5c41a3
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>