[Bug c++/83937] [7/8 Regression] C++17 binds braced init of a type T to default arg of a ctor instead of using T's own default ctor

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83937

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Link to P0135: http://wg21.link/p0135