meaning: flags for treating it as a warning vs as an error? (pardon, i'm over thinking ambiguity in phrasing).
if thats the desired difference, that sounds good to me!
I would expect it means that, having demoted it to a warning, we would have -fwarn-hiding-no-target / -fno-warn-hiding-no-target (or whatever we call it) as with all other warnings.
For warning vs. error, it seems to me that should be more general: perhaps taking any of the -f[no-]warn-* options and replacing "warn" with "err".
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