[Bug libstdc++/94033] [10 Regression] is_trivially_copy_constructible<> fails with compiler error on complicated object with private default constructor

[redi at gcc dot gnu.org]

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

--- Comment #15 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The reason I haven't committed it yet is I had to figure out a workaround for
PR 94197 which caused some tests to fail with my earlier patch.