[Bug c++/121524] [15/16 Regression] Trailing alignas leaks into subsequent types, sometimes

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121524

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 62107
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62107&action=edit
more portable testcase