scalaz/scalaz — pull request #150 by S11001001 (2012-09-16 16:16:18+00:00)
Title: Arrow is also Pointed in the covariant parameter.

```scala
scala> Arrow[Function1].covariantInstance[Int].point("hi")
res3: Int => java.lang.String =

scala> res3(3)
res5: java.lang.String = hi
```