[Bug c++/86210] [6/7/8/9 Regression] Missing -Wnonnull warning for function defined in the same TU

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86210

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Regression fixed for 8.2+ so far by the above changes, for the enhancement see
above comment.