Reported by G7Nation; attacking walls and such with a polearm just
gave lackluster "you miss; nobody's there" feedback.
Make applying a polearm at some non-monster locations give feedback
similar to using 'F'orcefight with melee weapons. Was
|You miss; there is no one there to hit.
now
|You uselessly attack the closed door.
Also, extend the supported locations to include dungeon furniture.
Was
|You attack thin air. ('F')
now
|You harmlessly attack the throne. ('F')
|You uselessly attack the throne. ('a')
This doesn't address #613: attempting to hit non-visible locations
with an applied polearm.
Closes#614
6edadc4884