tdf#130857 qt weld: Handle more QtInstanceTreeView::insert params

* Don't always append, but evaluate the insert position
(with special value -1 to append).
* If an iterator is passed for `pRet`, set its model
index to the new item's model index.

Change-Id: I2db8718f4b572d4ae3dcfa7183033f04174b72a1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/178975
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

0 files changed, 0 insertions, 0 deletions