[Bug c++/57745] missing recursive lifetime extension within std::initializer_list

[richard-gccbugzilla at metafoo dot co.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57745

--- Comment #3 from Richard Smith <richard-gccbugzilla at metafoo dot co.uk> ---
Yes, this is now fixed; the remaining difference is a defect in the standard.