[Bug libstdc++/94033] is_trivially_copy_constructible<> fails with compiler error on complicated object with private default constructor

[rafael at espindo dot la]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94033

--- Comment #5 from Rafael Avila de Espindola <rafael at espindo dot la> ---
The regression (at least with the reduced testcase I uploaded) is from:

commit 58487c21b6a47c3fff6c6958684de866216a5593 (HEAD)
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Mon May 20 12:32:51 2019 +0100

    PR c++/90532 Ensure __is_constructible(T[]) is false