By now, the accessible is known to always be an OAccessible,
so return that more specific type instead of a Reference to
the abstract XAccessible interface.
Change-Id: I60f6b2d6465abfcb04d4ee7d3a26bce69fccded3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/188182
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins
Michael Weghorn
842f0019fa