* Patches from Minh Tran-le <mtranle@paris.intellicorp.com>.
* configure.in (i386-*-isc*, i386-*-aix*): New targets.
* configure.host (i386-*-isc*, i386-*-aix*): New hosts.
* hosts/i386isc.h, config/i386isc.mh: New files for Interactive
Unix.
* hosts/i386aix.h, config/i386aix.mh: New files for AIX on PS/2.
* aix386-core.c: New file for handling core files on AIX on PS/2.
* targets.c: if AIX386_CORE, use aix386_core_vec.
* coffcode.h (coff_real_object_p): check for I386SVMAGIC as well
as I386MAGIC.
