PATCH to cp/: Make tf_warning | tf_error an enumeration

[Mark Mitchell]

Gabriel Dos Reis wrote:

> I used the "verb" form in the line of "tf_ignore_bad_quals",
> "tf_keep_type_decl".

Yes, it would be even more consistent to use tf_emit_warnings,
tf_emit_errors, and tf_emit_warnings_and_errors.

I don't want to pick *too* many nits, though. :-)

Thanks,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
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