[Bug c++/121089] internal compiler error: Segmentation fault splay_tree_foreach since 13.1

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121089

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |error-recovery

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced to:
```
enum class e1 : auto
{
  kSwap = 0,
};
void f( const e1& mutation)
{
  switch (mutation) {
    case e1::kSwap: ;
  };
}
```