[Bug c++/124709] when "-freflection" is enabled, "import std;" and header includes of std library doesn't compile

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124709

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Oops, I meant Bug 123879 (and -freflection is not relevant, it's just
-std=c++26 and -fmodules that matters)

*** This bug has been marked as a duplicate of bug 123879 ***