Qt4ProjectManager: Skip files that are actually directories
Qt4ProjectManager: Skip files that are actually directories

Since the cumulative parsing now parses for loops, we get bogus data
in creator's own .pro files.

Task-number: QTCREATORBUG-10045
Change-Id: I627772f221cc5c928458788feb036cdd93b25a08
Reviewed-by: Robert Loehning <1f928983f879a6fe326acd94487f754cc16e1fe4@digia.com>
Reviewed-by: Daniel Teske <d8a411aec9a206efedb4d45b75fe8d13f1e2b628@digia.com>

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