Enhancement on `export` symbol

[Hipreme]

On Friday, 14 March 2025 at 12:07:00 UTC, Johan wrote:
> On Friday, 14 March 2025 at 02:46:08 UTC, Richard (Rikki) 
> Andrew Cattermole wrote:
>> https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1045.md#export-annotation
>
> My intuition says that it'll be more broadly useful if 
> attributes can be combined and aliased.
> Something like this:
>
> ```
> version(X) {
>   // some arbitrary list of attributes
>   alias attribs = AliasSeq!(export, extern(C), 
> ldc.attributes.weak);
> } else {
>   // some arbitrary list of attributes
>   alias attribs = AliasSeq!(extern(D), ldc.attributes.hidden);
> }
>
> @attribs
> void foo() {}
> ```
>
> You can already do this for the LDC attributes (because they 
> are implemented as magic types), but not for D core language 
> attributes.
>
> -Johan

Seconded. I believe having those core language attributes 
transformed into magic types would definitely solve a long 
standing issue on the language and would make more C/C++ 
behaviors (such as `#define dllimport`) available in the language.