[Bug c++/85646] [7/8/9 Regression] Incorrect lambda visibility with -fvisibility=hidden

[duarte at scylladb dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85646

--- Comment #2 from Duarte <duarte at scylladb dot com> ---
I forgot to add that it compiles successfully without -fvisibility=hidden, and
without the template.