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

[hjl.tools at gmail dot com]

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

--- Comment #29 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Andrew Pinski from comment #27)
> Comment on attachment 36720 [details]
> A patch
> 
> How does this interact with LTO where lang_hooks.decls.empty_record_p is not
> defined?

We can stream out empty record info and use it to in lto_empty_record_p.