Error: The type of const parameters must not depend on other generic parameters

[Pzixel]

The following code

struct Test<T, const VAL: T>(T);

Results in a "error[E0770]: the type of const parameters must not depend on other generic parameters" compilation error on current Nightly.

I would expect that there is some unstable feature generic_const_exprs but complier suggests none. I've seen enough people having this question so I think it worth having one issue to have all relevant answers/solutions.

[BoxyUwU]

cc rust-lang/project-const-generics#28