[GHC] #10573: Generalize forever to Applicative

[GHC]

#10573: Generalize forever to Applicative
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        Reporter:  fumieval          |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  libraries/base    |                 Version:  7.10.1
      Resolution:                    |                Keywords:  AMP
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:  Phab:D1045
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Changes (by fumieval):

 * differential:   => Phab:D1045


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10573#comment:1>
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