[Bug c/68473] [6 Regression] ICE: in contains_point, at diagnostic-show-locus.c:340 after error

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68473

--- Comment #9 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Updated patch kit posted here:
  https://gcc.gnu.org/ml/gcc-patches/2015-12/msg01291.html