coff mixed debug formats

[Jim Blandy]

Brian Ford <ford@vss.fsi.com> writes:
> 2004-03-23  Brian Ford  <ford@vss.fsi.com>
> 
>         * coffread.c (coff_symfile_read): Prevent mixed debugging formats from
>         corrupting/reinitializing the psymtab like elf_symfile_read.
>         * dbxread.c (elfstab_build_psymtabs): Remove bogus comment.

The dbxread.c portion of this patch is approved.  The coffread.c
portion looks good to me, too, although I can't approve that.