If debug_mons_scan() detects a problem which happened during level generation,

and there's vaults on the level, then report which vaults (if any) the problem monsters are in.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8024 c06c8d41-db1a-0410-9941-cceddc491573

Created by  zelgadis  on December 29, 2008
3TEB6EUUYKQ4S6WJHX46OXUM4JPDSGJJNGACT7K7IBZU3L2SVJQAC
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