[Bug c++/117345] internal compiler error: Segmentation fault at maybe_begin_member_template_processing(tree_node*)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117345

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |3.4.6
           Keywords|error-recovery              |

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced down to (making it more C++98 like, removing the `decltype(auto)`):
```
struct X {
  template<typename T> static void g0(T x);
};
template<typename U> class A {
  friend void X::g0<A<U> >(A<U> = 0);
};
```

we started to rejecting default arguments for friends (without -fpermissive) in
GCC 9. But the ICE has been there since at least GCC 3.4.6, I can't test any
older though.