[Bug c/84531] c/c++: bogus warning for functions with different argument lengths but compatible arguments

[siddhesh at gotplt dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84531

--- Comment #2 from Siddhesh Poyarekar <siddhesh at gotplt dot org> ---
There's also a PyCFunctionWithoutArgs that takes just one parameter so it'll
have to be one arg onwards but I don't know the impact on it's API. I'm going
to test that when I get back home tonight and propose a fix in Python. I kinda
understand the rationale behind not diluting the warning, but I'd like to keep
this open pending conclusion of the discussion on the ML.