DIP1000: Walter's proposal to resolve ambiguity of ref-return-scope parameters

[zjh]

On Saturday, 27 November 2021 at 03:41:05 UTC, Paul Backus wrote:

> ```d
> struct S
> {
>     private int[] a;
>     const int[] getArray() const { return a; }
> }
> ```

We should collect a beginner's `error prone` items,And put a link 
on the home page.
can we like this?
```d
@constthis
const int[] getArray() { return a; }
```
`python`'s `self` is everywhere,it's very annoying.