[Bug c++/71221] [concepts] ICE in tsubst_pack_expansion when expanding a sizeof... expression in a requires clause of a member function template

[tom at honermann dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71221

--- Comment #3 from Tom Honermann <tom at honermann dot net> ---
This issue appears to be resolved as of r238202.  I can now compile the test
case from comment 0 successfully.