Patch: PR 5941

[Jason Merrill]

>>>>> "Tom" == Tom Tromey <tromey@redhat.com> writes:

> This changes the macro name to SUPRESS_UNREACHABLE_ERROR.
> It emits a warning, except when pedantic, in which case it prints
> nothing (because pedantically the code in question is 100% correct).

FWIW, I disagree with this use of -pedantic.  To me, -pedantic means
"complain about non-conformant code", and should not affect warnings about
code that probably doesn't do what you want.

Jason