Bump `base` version to 4.9.0.0 (closes #11026)
[ghc.git] / testsuite / tests / typecheck / should_fail / T2414.stderr
1
2 T2414.hs:9:13:
3     Occurs check: cannot construct the infinite type: b0 ~ (Bool, b0)
4     Expected type: b0 -> Maybe (Bool, b0)
5       Actual type: (Bool, b0) -> Maybe (Bool, b0)
6     In the first argument of ‘unfoldr’, namely ‘Just’
7     In the expression: unfoldr Just