[GHC] #7148: generalized newtype and type families is unsound

[GHC]

#7148: generalized newtype and  type families is unsound
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        Reporter:  carter                   |            Owner:  simonpj
            Type:  bug                      |           Status:  new
        Priority:  normal                   |        Milestone:  7.8.1
       Component:  Compiler (Type checker)  |          Version:  7.6.1-rc1
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by goldfire):

 See [wiki:Roles] for the concrete approach toward a solution. Expect a
 working implementation to be available within a week or two.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7148#comment:5>
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