[GHC] #4083: Generalized newtype deriving fails for newtypes that are type family instances

[GHC]

#4083: Generalized newtype deriving fails for newtypes that are type family
instances
-------------------------------------+-------------------------------------
        Reporter:  RANDY Ruler of    |                Owner:  (none)
  Zexernet                           |
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  6.12.1
      Resolution:  invalid           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Iceland_jack):

 For type families see #13404

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4083#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler