As happens for other widgets
(s. QAccessibleWidget::parentObject), report the app
as accessible parent for item views that don't
have another parent set.
Otherwise, the accessible tree is broken when
there's a top-level item view:
The application has the item view as a child,
but the child does not have any parent set.
Extend a QListView autotest accordingly.
Fixes: QTBUG-115135
Pick-to: 6.6 6.5
Change-Id: Ie06874681180a30fc6248dc98f80c4158d837278
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
6ec35ff8c5