[Bug c++/92099] [9/10 Regression] static_assert of struct template of false_type succeed with GCC8 but not GCC9

[sunxuanmailbox at 163 dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92099

--- Comment #1 from 孙晅 <sunxuanmailbox at 163 dot com> ---
Also tried with gcc 10.0.0 201901015 (experimental) and failed to compile.