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T12589.hs:13:3: error: Variable not in scope: (&) :: t0 -> t1 -> t
T12589.hs:13:5: error:
• Cannot instantiate unification variable ‘t1’
with a type involving foralls:
(forall a. Bounded a => f0 a) -> h0 f0 xs0
GHC doesn't yet support impredicative polymorphism
• In the second argument of ‘(&)’, namely ‘hcpure (Proxy @Bounded)’
In the expression: (&) minBound hcpure (Proxy @Bounded)
In an equation for ‘a’: a = (&) minBound hcpure (Proxy @Bounded)
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