[Bug c/106850] restrict type qualifier ignored on function return type

[colomar.6.4.3 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106850

--- Comment #1 from Alejandro Colomar <colomar.6.4.3 at gmail dot com> ---
The benefits are:

- It's standard.
- It's less bytes to type.