GCC GNATS classes

["Martin v. Loewis" <martin at loewis dot home dot cs dot tu-berlin dot de>]

After working for some time with GNATS, I'd like to make a change to
the GCC GNATS installation, adding new classes. After discussion with
Nathan Sidwell, we've agreed that the following classes would be
appropriate.

# Standard GNATS classes
sw-bug::Problem requiring a correction to software.
doc-bug::Problem requiring a correction or improvement in documentation.
support::A support problem or question.
change-request::Suggested change in functionality.
mistaken::Not a problem, bad PR submission.
duplicate::Duplicate of another existing PR.

# GCC specific classes.
wrong-code::Compiler generates wrong code.
ice-on-legal-code::Internal Compiler Error for legal code.
ice-on-illegal-code::Internal Compiler Error for ill-formed code.
accepts-illegal::Compiler accepts ill-formed code.
rejects-legal::Compiler does not accept well-formed code.
pessimizes-code::Compiler should produce more efficient code.

I admit that I don't understand the meaning of "pessimize"...

I don't know if the software installation is so flexible to survive a
replacement of the classes file with this list, but I'd appreciate if
somebody with access to the GNATS installation would try, or would
tell me why it is not possible to make this change. Also, if anybody
thinks that change would be a bad idea, please speak up now :-)

Thanks,
Martin