Why are template alias parameters broken?

[Menshikov]

On Friday, 27 August 2021 at 19:32:49 UTC, Steven Schveighoffer 
wrote:
> On 8/27/21 3:14 PM, Steven Schveighoffer wrote:
>
>> To work around, you can do:
>> 
>> ```d
>> template Foo(alias var)
>> {
>>     void inc() {var.a++}
>> }
>> ```
>> 
>> and then pass `v` instead of `v.a`.
>
> Another possible workaround:
>
> ```d
> auto v = V(4);
> ref int a() { return v.a; }
> alias foo = Foo!a;
> foo.inc();
> ```
>
> -Steve

Thanks