* bar.ads: Likewise. * bar.adb: Likewise. * null_record.adb: Likewise. * null_record.exp: Likewise. * gnat_ada.gpr.in: Likewise. Fix typo in a comment, clarify another.
* gdb.ada (null_record.exp): New testcase.
* gdb.ada/Makefile.in: New file. * gdb.ada/gnat_ada.gpr.in: New file.