Move XEnumeration Java tests to C++
for ScIndexEnumeration_FunctionDescriptionEnumeration.

Change-Id: I6c15abff293996a6bac8e4a6c0004853fae13990
Reviewed-on: https://gerrit.libreoffice.org/63604
Tested-by: Jenkins
Reviewed-by: Jens Carl <j.carl43@gmx.de>