SYNOPSIS
int query_allow_shadow(object victim)
DESCRIPTION
Return 1 if previous_object() is allowed to use efun shadow()
on object victim, 0 if it is not.
The function should deny shadowing on all root objects, else
it might query the victim for clearance. Most installations
seem to use victim->prevent_shadow(previous_object()) to
check if the victim denies being shadowed.
SEE ALSO
shadow(E)