Printing type operators adds extraneous parenthesis

Given the code:

{-# LANGUAGE TypeOperators #-}

type name ::: a = a

f :: Int ::: Int -> Int
f = id

In GHCi-8.0.2 I get:

>>> :t f
f :: Int ::: Int -> Int

But in GHCi-8.2.0.20170427 I get:

>>> :t f
f :: (Int ::: Int) -> Int

Trac metadata

Trac field	Value
Version	8.2.1-rc2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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