[Bug c/71610] Improve location for "warning: ISO C restricts enumerator values to range of ‘int’ [-Wpedantic]"?

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71610

--- Comment #4 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Candidate patch: https://gcc.gnu.org/ml/gcc-patches/2016-06/msg01658.html