[GHC] #10598: DeriveAnyClass and GND don't work well together

[GHC]

#10598: DeriveAnyClass and GND don't work well together
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        Reporter:  osa1              |                Owner:  RyanGlScott
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:  Generics
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 I would propose making the class-annotation stuff its own ticket—I think
 there's further discussion that would need to be had before considering
 such a change.

 In any case, I'm getting close to having a Diff ready for this. I
 originally implemented it using the type synonyms approach, but since that
 was shot down, I'll need to do some refactoring to use pragmas instead
 (hopefully just plumbing).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10598#comment:31>
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