C++: Preprocessor: Do not add configurationFileName() to the seen files
C++: Preprocessor: Do not add configurationFileName() to the seen files

After processing configurationFileName() the first time, it was added to
the already seen files (m_included). Thus, on parsing further files, it
was ignored and with that all the project defines.

Task-number: QTCREATORBUG-9107
Change-Id: Ia4817dfa3b30ed27d142f7f3eeb6f099d0653441
Reviewed-by: Erik Verbruggen <5edfe905d082749f2ac3f4e6b42937f39f083771@digia.com>

Distrotech/qtcreator,kuba1/qtcreator,AltarBeastiful/qt-creator,omniacreator/qtcreator,richardmg/qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,malikcjm/qtcreator,richardmg/qtcreator,amyvmiwei/qt-creator,Distrotech/qtcreator,kuba1/qtcreator,AltarBeastiful/qt-creator,Distrotech/qtcreator,danimo/qt-creator,maui-packages/qt-creator,farseerri/git_code,danimo/qt-creator,amyvmiwei/qt-creator,martyone/sailfish-qtcreator,darksylinc/qt-creator,malikcjm/qtcreator,maui-packages/qt-creator,Distrotech/qtcreator,malikcjm/qtcreator,colede/qtcreator,xianian/qt-creator,duythanhphan/qt-creator,darksylinc/qt-creator,darksylinc/qt-creator,darksylinc/qt-creator,omniacreator/qtcreator,danimo/qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,danimo/qt-creator,amyvmiwei/qt-creator,duythanhphan/qt-creator,maui-packages/qt-creator,colede/qtcreator,danimo/qt-creator,maui-packages/qt-creator,darksylinc/qt-creator,kuba1/qtcreator,omniacreator/qtcreator,darksylinc/qt-creator,martyone/sailfish-qtcreator,malikcjm/qtcreator,colede/qtcreator,AltarBeastiful/qt-creator,kuba1/qtcreator,duythanhphan/qt-creator,colede/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,richardmg/qtcreator,duythanhphan/qt-creator,richardmg/qtcreator,maui-packages/qt-creator,AltarBeastiful/qt-creator,xianian/qt-creator,farseerri/git_code,darksylinc/qt-creator,xianian/qt-creator,richardmg/qtcreator,malikcjm/qtcreator,AltarBeastiful/qt-creator,omniacreator/qtcreator,duythanhphan/qt-creator,AltarBeastiful/qt-creator,colede/qtcreator,kuba1/qtcreator,amyvmiwei/qt-creator,Distrotech/qtcreator,omniacreator/qtcreator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,malikcjm/qtcreator,amyvmiwei/qt-creator,amyvmiwei/qt-creator,omniacreator/qtcreator,farseerri/git_code,amyvmiwei/qt-creator,xianian/qt-creator,colede/qtcreator,farseerri/git_code,omniacreator/qtcreator,danimo/qt-creator,xianian/qt-creator,darksylinc/qt-creator,danimo/qt-creator,xianian/qt-creator,farseerri/git_code,maui-packages/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,Distrotech/qtcreator,richardmg/qtcreator,duythanhphan/qt-creator,kuba1/qtcreator,duythanhphan/qt-creator,farseerri/git_code,xianian/qt-creator,maui-packages/qt-creator,richardmg/qtcreator,danimo/qt-creator,AltarBeastiful/qt-creator,kuba1/qtcreator,kuba1/qtcreator,Distrotech/qtcreator,danimo/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator,farseerri/git_code,malikcjm/qtcreator