[Bug c++/56190] GCC fails deducing a "void(*)(int, float, double)" to a "void(*)(T..., float, double)" with T={int}

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56190

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Simplier example:
```
int func(int, char);

template<typename... TArgs>
int testFunc(int (*)(TArgs..., char));

int x = testFunc<int>(func);
```