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tcfail032.hs:14:8: error:
• Couldn't match expected type ‘a1 -> Int’ with actual type ‘p’
because type variable ‘a1’ would escape its scope
This (rigid, skolem) type variable is bound by
an expression type signature:
forall a1. Eq a1 => a1 -> Int
at tcfail032.hs:14:13-30
• In the expression: (x :: (Eq a) => a -> Int)
In an equation for ‘f’: f x = (x :: (Eq a) => a -> Int)
• Relevant bindings include
x :: p (bound at tcfail032.hs:14:3)
f :: p -> a -> Int (bound at tcfail032.hs:14:1)
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