[Bug c++/110689] problem of initializer list

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110689

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Testcase that is complete:
```
#include <initializer_list>

struct M {
    operator char() { return 'a'; }
} m;
        int flag;
struct S {
    S(std::initializer_list<int>) { flag = 1; }
    S(std::initializer_list<float>) { flag = 2; }
};

S s = { m };

```