[GHC] #1830: Automatic derivation of Lift

[GHC]

#1830: Automatic derivation of Lift
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        Reporter:  guest             |                   Owner:
                                     |  RyanGlScott
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:  ⊥
       Component:  Template Haskell  |                 Version:  6.8.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D1168
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Comment (by simonpj):

 I'm not dead set against this (adding new auto-derived classes doesn't
 interact with anything), but it does impose a little extra maintenance
 burden to keep it all working and you can get nearly the same behaviour
 with a (perhaps enhance) `th-lift` library.

 It would seem more persuasive if there was more than one advocate for it.
 Is there a large constituency of TH users who will benefit from this?
 Data from Hackage might be illuminating... how many `Lift` instances
 exist?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1830#comment:14>
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