[Bug middle-end/81812] [7/8 Regression] Empty virtual function fails to compile

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81812

--- Comment #9 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This works in 7.3.0 too. I'm going to add the testcase and close the bug.