I was testing something with #monpolycontrol enabled and got a
series of "Change it into what kind of monster? [type the name]" prompts
when I went to a new level. It was asking about monsters that were being
created (in this case, multiple vampires for top level of Vlad's Tower)
and naturally I couldn't see them since the level wasn't finished yet.
This switches to noit_mon_nam() to at least be informed about the type
of creature you're being asked to specify a shape for, and adds the map
coordinates so that it doesn't appear to be reprompting for the same
monster over and over when multiple similar ones are being created.
In the process I discovered that #monpolycontrol would let you give
any type of monster for the shape of vampires. Unlike chameleons, they
don't change into arbitrary shapes so that was inappropriate. [And
trying to test the fix for this is what led to the previous ^G patch.]