[Bug c++/123658] ICE in tsubst_expr (at cp/pt.cc) when lambda in template accesses member of local constexpr struct without capture

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123658

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Slightly reduced:
```
struct Nested {
  int value;
};
template <class T=int> void f() {
  constexpr Nested x = {};
  [] { x.value ? x.value : 1; };
}
int main() { f(); }
```