tcfail069.hs:20:
- Couldn't match the type `[aEL]' against `(aEP, aER)'
- Expected: [aEL]
- Inferred: (aEP, aER)
+ Couldn't match the type `[aF3]' against `(aF7, aF9)'
+ Expected: [aF3]
+ Inferred: (aF7, aF9)
In the scrutinee of a case expression: (list1, (list2))
In the case expression: case (list1, (list2)) of [] -> error "foo"