[Bug c++/107600] New __is_destructible built-in

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107600

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And for this type but I haven't figured out why:

#include <system_error>
static_assert( __is_destructible(std::error_category) );