Fixes#116
Farlook in 3.4.3 used xname() and just described any corpse as
"corpse" whether you knew the monster type or not. 3.6.x switched
to doname() and describes it as "<mon-type> corpse", but if it isn't
there anymore, the fake object contructed for it would have a random
corpse type.
For corpses and statues, the map glyph provides enough information
to give the fake object the same type as the original. For other
items that have a monster component (figurines, tins, eggs) it does
not, nor for other doname attributes of objects in general (which
might be picked up by monsters rather than rot away). So this fixes
the rotted-away-corpse-seems-to- become-random-corpse issue but not
the general case of the details for a remembered item which isn't
there anymore.
e9ee20bc18