TH_unresolvedInfix2.hs:14:9: error:
    • The operator ‘:+’ [infixl 6] of a section
          must have lower precedence than that of the operand,
            namely ‘:+’ [infixl 6]
          in the section: ‘:+ N :+ N’
    • In the untyped splice:
        $(let
            plus = conE '(:+)
            n = conE 'N
          in infixE Nothing plus (Just $ uInfixE n plus n))