[Bug debug/46749] gcc.dg/debug/pr41893-1.c -gdwarf-2 testsuite failures on darwin

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46749

--- Comment #39 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-07 
09:46:51 UTC ---
The patch looks reasonable to me.  -dsym and -idsym need addition to common.opt
as driver option I think and eventually need documentation if they are supposed
to be used by the user as well.

Thanks,
Richard.