6879: Change HasChildSource::ChildId assoc item to generic param r=matklad a=Veykril Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
6879: Change HasChildSource::ChildId assoc item to generic param r=matklad a=Veykril Co-authored-by: Lukas Wirth <lukastw97@gmail.com>