[Bug c/63480] -Wmissing-field-initializers should not warn about intentionally empty initializers (or that should be a separate option)

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63480

--- Comment #4 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Found it: PR61489

I think warning for {0} is on purpose, since one cannot tell if the struct
originally had one field and now it has two. But I don't really agree with it.
I think it is too noisy.