[GHC] #9527: Add Generic instances for Language.Haskell.TH

[GHC]

#9527: Add Generic instances for Language.Haskell.TH
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       Reporter:  nh2                |                   Owner:
           Type:  feature request    |                  Status:  new
       Priority:  normal             |               Milestone:  7.10.1
      Component:  libraries/base     |                 Version:  7.8.3
       Keywords:                     |        Operating System:
   Architecture:  Unknown/Multiple   |  Unknown/Multiple
     Difficulty:  Moderate (less     |         Type of failure:
  than a day)                        |  None/Unknown
     Blocked By:  9526               |               Test Case:
Related Tickets:                     |                Blocking:
                                     |  Differential Revisions:
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 Template Haskell has a number of huge data types that would be much easier
 to work with if they had `Generic` instances.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9527>
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