hey, i'm writing EitherHashinstance. ``` @instanc...

# arrow-contributors

[prat]

hey, i'm writing EitherHashinstance.

@instance(Either::class)
interface EitherHashInstance<L, R> : EitherEqInstance<L, R>, Hash<Either<L, R>> {

    override fun EQL(): Eq<L>

    override fun EQR(): Eq<R>

    fun HSL(): Hash<L>

    fun HSR(): Hash<R>

    override fun hash(a: Either<L, R>): Int = when (a) {
        is Either.Left -> HSL().hash(a.a).hashCode()
        is Either.Right -> HSR().hash(a.b).hashCode()
    }
}

when running the testLaws againts Either<String, Int>>(), HSR() returns StringHashInstance but I expected IntHashInstance. any thought of where i might mess things up