debugger: avoid one inferior call in QDir dumper
debugger: avoid one inferior call in QDir dumper

Reviewed-by: Friedemann Kleint

jonnor/qt-creator,renatofilho/QtCreator,bakaiadam/collaborative_qt_creator,farseerri/git_code,dmik/qt-creator-os2,kuba1/qtcreator,richardmg/qtcreator,ostash/qt-creator-i18n-uk,amyvmiwei/qt-creator,omniacreator/qtcreator,colede/qtcreator,maui-packages/qt-creator,richardmg/qtcreator,malikcjm/qtcreator,duythanhphan/qt-creator,colede/qtcreator,KDE/android-qt-creator,azat/qtcreator,maui-packages/qt-creator,amyvmiwei/qt-creator,darksylinc/qt-creator,richardmg/qtcreator,xianian/qt-creator,syntheticpp/qt-creator,renatofilho/QtCreator,KDE/android-qt-creator,KDE/android-qt-creator,danimo/qt-creator,ostash/qt-creator-i18n-uk,pcacjr/qt-creator,yinyunqiao/qtcreator,yinyunqiao/qtcreator,darksylinc/qt-creator,amyvmiwei/qt-creator,KDE/android-qt-creator,pcacjr/qt-creator,sandsmark/qtcreator-minimap,maui-packages/qt-creator,pcacjr/qt-creator,malikcjm/qtcreator,xianian/qt-creator,kuba1/qtcreator,kuba1/qtcreator,ostash/qt-creator-i18n-uk,farseerri/git_code,farseerri/git_code,renatofilho/QtCreator,KDE/android-qt-creator,darksylinc/qt-creator,KDAB/KDAB-Creator,dmik/qt-creator-os2,amyvmiwei/qt-creator,sandsmark/qtcreator-minimap,AltarBeastiful/qt-creator,duythanhphan/qt-creator,xianian/qt-creator,danimo/qt-creator,omniacreator/qtcreator,kuba1/qtcreator,xianian/qt-creator,KDAB/KDAB-Creator,kuba1/qtcreator,colede/qtcreator,amyvmiwei/qt-creator,ostash/qt-creator-i18n-uk,azat/qtcreator,martyone/sailfish-qtcreator,AltarBeastiful/qt-creator,hdweiss/qt-creator-visualizer,AltarBeastiful/qt-creator,renatofilho/QtCreator,omniacreator/qtcreator,KDAB/KDAB-Creator,amyvmiwei/qt-creator,yinyunqiao/qtcreator,duythanhphan/qt-creator,danimo/qt-creator,hdweiss/qt-creator-visualizer,omniacreator/qtcreator,azat/qtcreator,richardmg/qtcreator,syntheticpp/qt-creator,maui-packages/qt-creator,darksylinc/qt-creator,syntheticpp/qt-creator,KDE/android-qt-creator,Distrotech/qtcreator,kuba1/qtcreator,richardmg/qtcreator,kuba1/qtcreator,dmik/qt-creator-os2,AltarBeastiful/qt-creator,renatofilho/QtCreator,azat/qtcreator,amyvmiwei/qt-creator,bakaiadam/collaborative_qt_creator,martyone/sailfish-qtcreator,xianian/qt-creator,omniacreator/qtcreator,AltarBeastiful/qt-creator,richardmg/qtcreator,darksylinc/qt-creator,ostash/qt-creator-i18n-uk,malikcjm/qtcreator,yinyunqiao/qtcreator,martyone/sailfish-qtcreator,colede/qtcreator,syntheticpp/qt-creator,ostash/qt-creator-i18n-uk,jonnor/qt-creator,martyone/sailfish-qtcreator,maui-packages/qt-creator,AltarBeastiful/qt-creator,dmik/qt-creator-os2,bakaiadam/collaborative_qt_creator,malikcjm/qtcreator,hdweiss/qt-creator-visualizer,martyone/sailfish-qtcreator,colede/qtcreator,KDE/android-qt-creator,yinyunqiao/qtcreator,xianian/qt-creator,hdweiss/qt-creator-visualizer,syntheticpp/qt-creator,darksylinc/qt-creator,martyone/sailfish-qtcreator,maui-packages/qt-creator,yinyunqiao/qtcreator,amyvmiwei/qt-creator,malikcjm/qtcreator,AltarBeastiful/qt-creator,farseerri/git_code,jonnor/qt-creator,Distrotech/qtcreator,richardmg/qtcreator,Distrotech/qtcreator,syntheticpp/qt-creator,colede/qtcreator,duythanhphan/qt-creator,KDAB/KDAB-Creator,bakaiadam/collaborative_qt_creator,KDE/android-qt-creator,xianian/qt-creator,malikcjm/qtcreator,Distrotech/qtcreator,malikcjm/qtcreator,omniacreator/qtcreator,pcacjr/qt-creator,danimo/qt-creator,bakaiadam/collaborative_qt_creator,omniacreator/qtcreator,KDAB/KDAB-Creator,kuba1/qtcreator,martyone/sailfish-qtcreator,jonnor/qt-creator,farseerri/git_code,AltarBeastiful/qt-creator,duythanhphan/qt-creator,kuba1/qtcreator,dmik/qt-creator-os2,Distrotech/qtcreator,pcacjr/qt-creator,maui-packages/qt-creator,sandsmark/qtcreator-minimap,azat/qtcreator,sandsmark/qtcreator-minimap,duythanhphan/qt-creator,sandsmark/qtcreator-minimap,hdweiss/qt-creator-visualizer,jonnor/qt-creator,KDAB/KDAB-Creator,sandsmark/qtcreator-minimap,azat/qtcreator,darksylinc/qt-creator,renatofilho/QtCreator,xianian/qt-creator,dmik/qt-creator-os2,farseerri/git_code,colede/qtcreator,danimo/qt-creator,ostash/qt-creator-i18n-uk,danimo/qt-creator,darksylinc/qt-creator,pcacjr/qt-creator,danimo/qt-creator,xianian/qt-creator,Distrotech/qtcreator,farseerri/git_code,hdweiss/qt-creator-visualizer,syntheticpp/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,duythanhphan/qt-creator,jonnor/qt-creator,pcacjr/qt-creator,yinyunqiao/qtcreator,danimo/qt-creator,dmik/qt-creator-os2,bakaiadam/collaborative_qt_creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,bakaiadam/collaborative_qt_creator,farseerri/git_code