[Bug c++/105761] ICE on hidden friend definition defined in base type

[johelegp at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105761

--- Comment #1 from Johel Ernesto Guerrero Peña <johelegp at gmail dot com> ---
Simplified: https://godbolt.org/z/66Gd84dos.

```C++
template <class T>
class X {
  friend auto f(X);
};

struct Y : X<long> {
  friend auto f(X) { return 0L; }
};
```