[GHC] #9335: Add Functor, Applicative, Monad instances for First, Last

[GHC]

#9335: Add Functor, Applicative, Monad instances for First, Last
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              Reporter:  bgamari     |             Owner:
                  Type:  feature     |            Status:  patch
  request                            |         Milestone:
              Priority:  normal      |           Version:  7.8.2
             Component:              |          Keywords:
  libraries/base                     |  Operating System:  Unknown/Multiple
            Resolution:              |   Type of failure:  None/Unknown
Differential Revisions:              |         Test Case:
  https://phabricator.haskell.org/D81|          Blocking:
          Architecture:              |
  Unknown/Multiple                   |
            Difficulty:  Unknown     |
            Blocked By:              |
       Related Tickets:              |
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Changes (by bgamari):

 * differential:   => https://phabricator.haskell.org/D81


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9335#comment:3>
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