git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@9722 c06c8d41-db1a-0410-9941-cceddc491573
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static_cast<beh_type>(lua_tonumber(ls, 3)) :
static_cast<beh_type>(luaL_checkint(ls, 3)) :