-
-tcfail018.hs:5:
- Ambiguous type variable(s) `t'
- in the constraint `PrelBase.Num [t]'
- arising from the literal `1' at tcfail018.hs:5
-
-
-Compilation had errors
+tcfail018.hs:5:
+ No instance for `Num [t]'
+ arising from the literal `1' at tcfail018.hs:5
+ in a pattern binding: 1