Move XEnumeration Java tests to C++
for ScIndexEnumeration_NamedRangesEnumeration.

Change-Id: I7cbe9fbeddd4d8ecbccddfdfd14cdcae01a06684
Reviewed-on: https://gerrit.libreoffice.org/63517
Tested-by: Jenkins
Reviewed-by: Jens Carl <j.carl43@gmx.de>