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tcfail104.hs:14:12: error:
• Couldn't match type: forall a. a -> a
with: Char -> Char
Expected: (Char -> Char) -> Char -> Char
Actual: (forall a. a -> a) -> Char -> Char
• In the expression: \ (x :: forall a. a -> a) -> x
In the expression:
if v then (\ (x :: forall a. a -> a) -> x) else (\ x -> x)
In the expression:
(if v then (\ (x :: forall a. a -> a) -> x) else (\ x -> x)) id 'c'
tcfail104.hs:22:15: error:
• Couldn't match expected type: Char -> Char
with actual type: forall a. a -> a
• When checking that the pattern signature: forall a. a -> a
fits the type of its context: Char -> Char
In the pattern: x :: forall a. a -> a
In the expression: \ (x :: forall a. a -> a) -> x
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