[GHC] #15098: Missing instances for Down

[GHC]

#15098: Missing instances for Down
-------------------------------------+-------------------------------------
           Reporter:  ekmett         |             Owner:  (none)
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:  8.6.1
          Component:  Core           |           Version:  8.2.2
  Libraries                          |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 `Down` in `Data.Ord` is missing the instances for `Monad`, `MonadFix`,
 `MonadZip`, `Eq1`, `Ord1`, `Show1`, `Read1`, `Data`, `Generic`,
 `Generic1`, `Foldable`, `Traversable`.

 We added a bunch of common sense 'only one definition' instances over the
 last few GHC releases, but apparently we missed `Data.Ord.Down`.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15098>
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