Return value storage classes - `scope` as well as `ref`

[Quirin Schroll]

On Monday, 29 May 2023 at 10:08:38 UTC, Nick Treleaven wrote:
> However, there is another case of missing syntax for an 
> unimplemented feature. `scope` would be useful to apply to the 
> return value of a function.

By “unimplemented feature” are you suggesting a new langue 
feature or is there something specified that is not implemented 
yet?

If it’s already in the spec, please quote the relevant sections.