and rename it to DBG_UNHANDLED_EXCEPTION, to make it more like
the SAL_WARN-type macros.

Use some macro magic to deal with different numbers of arguments.

Update the sallogareas plugin to check the area parameter of
DBG_UNHANDLED_EXCEPTION.

Change-Id: Ie790223244c3484f41acb3679c043fb9b438e7c4
Reviewed-on: https://gerrit.libreoffice.org/52073Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>