[Bug c++/97890] Abstract virtual classes suddenly allowed as parameter types ?

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97890

--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---

Git hash 9243f0fba68339fa is silent on the code. Trying git hash
253c415a1acba507