[Bug c++/114311] Possibly wrong "error: ‘this’ is not a constant expression" with consteval member function

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114311

--- Comment #2 from Carlo Wood <carlo at gcc dot gnu.org> ---
I meant `constexpr Symbol x;` inside main - with the same error.