Export ProjectExplorer::Task again.
Export ProjectExplorer::Task again.

Accidentally removed that while moving the class.

Reviewed-By: con

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