[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:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by rwbarton):

 I'm confused by a lot of this thread. As I mentioned in comment:2,
 `DeriveAnyClass` will never derive `Functor`, even when it is the only
 deriving extension enabled. So I would expect the presence of
 `DeriveAnyClass` to be irrelevant to any attempt to derive `Functor`,
 whatever other deriving extensions are enabled. And I think this behavior
 is (poorly) documented, by the word "other" in the description of
 `DeriveAnyClass`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10598#comment:16>
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