[Bug c++/92947] Parenthesized aggregate initialization doesn't work with the library types it's supposed to work with

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92947

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Sorry, looking into this again.  A problem I see with my fix is that with it
this assert fails:

struct A { };
struct B { };
static_assert (!__is_trivially_constructible(A, B), "");

i.e. we say __is_trivially_constructible(A, B) is true.  That still incorrect
even in C++20, right?