Can now use alias for collapsing multiple fields in nested structs

[Walter Bright]

On 1/2/2025 6:32 AM, Derek Fawcus wrote:
> The closest native equivalent in D, would seem to be the following, making use 
> of the new facility.
> 
> ```D
> struct outer {
>      int a;
>      struct inner_ {
>              int b;
>              int c;
>      }
>      inner_ inner;
>      int d;
>      alias b = inner.b;
>      alias c = inner.c;
> };
> ```
> 
> Or is there a nicer way to write that in D?

```
struct outer {
     int a;
     struct {
         int b;
         int c;
     }
     int d;
}
```