Use an OAccessible var instead of an XAccessible one, which drops the need to query for the XAccessibleConetxt interface. Change-Id: I331890f6d2b1d507ad72108a10538fabb1372cfb Reviewed-on: https://gerrit.libreoffice.org/c/core/+/188606 Reviewed-by: Michael Weghorn <m.weghorn@posteo.de> Tested-by: Jenkins