[Bug c++/81997] [7/8 Regression] segfault while instantiating constrained function template

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81997

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase:
template <typename> void foo ();
namespace std {
template <class> struct initializer_list {
  int *b;
  unsigned long c;
  int begin ();
  int m ();
};
}
template <typename E, typename F> concept bool g = requires(E x) { x (foo <F>);
};
template <typename H, typename I> requires g<I, decltype(foo<H>)> I bar (H, H,
I);
void
baz ()
{
  auto l = {5};
  bar (l.begin (), l.m (), [](auto m) { m; });
}

Probably related to PR81918, at least the error is the same, just error
recovery different.