[Bug c++/61659] Extra undefined symbol because of devirtualization

[rafael.espindola at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61659

--- Comment #1 from Rafael Avila de Espindola <rafael.espindola at gmail dot 
com> ---
The undefined is still present with -fno-devirtualize-speculatively.