SmallUnliftedArray_ has type parameters in the wrong order

[Qqwy]

Compare

primitive-unlifted/src/Data/Primitive/Unlifted/SmallArray/ST.hs

Line 81 in 2692295

data SmallUnliftedArray_ a unlifted_a

with

primitive-unlifted/src/Data/Primitive/Unlifted/Array/ST.hs

Line 80 in 2692295

data UnliftedArray_ unlifted_a a

The order of the type parameters is reversed.

If we want people to truly use SmallUnliftedArray_ (and SmallMutableUnliftedArray_) when defining class instances, it is important to have the 'element type' be the last parameter, because only then is it possible to implement typeclasses whose inhabitants are of kind Type -> Type (i.e. any container-like typeclass, like the ones of the contiguous library).

[Qqwy]

It seems like a similar change happend to UnliftedArray itself in version 2.1.0.0