[Bug c/79969] C FE emits locus of forward enum declaration rather than definition into debug info

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79969

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
https://gcc.gnu.org/ml/gcc-patches/2009-09/msg01161.html
was the corresponding change for structs.