[Bug c++/54080] [C++11] g++ crashes when compiling the following file

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54080

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> ---
I should spend again some time on this. I must say, my old idea still makes
sense to me, at some point I will probably refresh it, rebase the patch and
send it again to the mailing list: I don't think the active C++ front-end
maintainers ever commented.