[Bug c++/60336] empty struct value is passed differently in C and C++

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60336

--- Comment #27 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Comment on attachment 36720
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36720
A patch

How does this interact with LTO where lang_hooks.decls.empty_record_p is not
defined?