[Bug c++/84222] [6/7/8 Regression] [[deprecated]] class complains about internal class usage

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84222

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Checking DECL_CONTEXT of current_function_decl if non-NULL doesn't seem to work
either.