[Bug c++/88820] [7/8/9 Regression] ICE in in C++2a mode for code which is able to be compiled in C++17 mode

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88820

--- Comment #11 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Jason Merrill from comment #10)
> I'm looking at the testcase in comment 7, but it seems unlikely to be
> related to the original testcase since that one is said to compile as C++17.

Never mind, CTAD was in C++17...