Commit ad233cf6 authored by Joachim Breitner's avatar Joachim Breitner
Browse files

Add forgotten stderr output for T5498

parent d154b7be
\ No newline at end of file
T5498.hs:30:39:
Could not coerce from ‛c a’ to ‛c (Down a)’
because ‛c a’ and ‛c (Down a)’ are different types.
arising from the coercion of the method ‛intIso’ from type
‛forall (c :: * -> *). c a -> c Int’ to type
‛forall (c :: * -> *). c (Down a) -> c Int’
Possible fix:
use a standalone 'deriving instance' declaration,
so you can specify the instance context yourself
When deriving the instance for (IntIso (Down a))
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