In C, enum types may be unsigned, but enum constants may not

[Alexandre Oliva]

I'd like to install the following testcase, based on 6.4.4.3/2, but I
don't think there's any way to mark it as an expected failure.
Anyway, it worked correctly in GCC 2.95.2, but it's broken in CVS, so,
if my understanding of the current procedure for installing testcases,
it should go in NOT marked as an expected failure, right?  Ok to
install?