Extend the capabilities of corpse_xname() so that various callers can
be simplified. It can how handle an article prefix, effectively turning it
into corpse_doname() (not quite; still need doname() to see a count when
quantity is more than one, or to see bless/curse state). It can also handle
inclusion of adjectives like "partly eaten" or "bite-covered". For unique
monsters those come out in the form
the Chromatic Dragon's partly eaten corpse
instead of the old
partly eaten Chromatic Dragon corpse
[so wishing probably needs to be taught about potentially finding a monster
name before assorted adjectives such as blessed; also, name_to_mon() needs
to learn how to cope with the possessive suffix].
A sizeable chunk of this patch deals with consolidating some of the
redundant "petrified by a cockatrice corpse" handling. It may be possible
to consolidate all remaining instances together since they're quite similar,
but I didn't think about that until just now and I want to get this patch
over with.
40dd607233