monsters flew, since levitation provides immunity from falling into e.g. deep water due to being immobilized. Also, when enslaving a monster's soul, free the monster first if it's trapped in a net.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8313 c06c8d41-db1a-0410-9941-cceddc491573
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// Set flight status this way so that monsters will always have the
// best flight status possible. This is necessary so that monsters
// with FL_NONE status when alive get FL_LEVITATE status as spectral
// things, and monsters with FL_FLY status when alive retain it as
// spectral things.
ret = std::max(mons_class_flies(mon->type), ret);
flight_type ret = mons_class_flies(montype);