add empty virtual d'tor to AbstractMacroExpander
add empty virtual d'tor to AbstractMacroExpander

it has virtual functions, after all ...

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