[Bug c++/90413] Bad diagnostic when trying to copy an uncopyable type

[barry.revzin at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90413

--- Comment #1 from Barry Revzin <barry.revzin at gmail dot com> ---
clang also doesn't do this well: https://bugs.llvm.org/show_bug.cgi?id=41819