[GHC] #8631: Need ImpredicativeTypes for GeneralizedNewtypeDeriving?

[GHC]

#8631: Need ImpredicativeTypes for GeneralizedNewtypeDeriving?
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        Reporter:  goldfire                      |            Owner:
            Type:  bug                           |           Status:  merge
        Priority:  normal                        |        Milestone:
       Component:  Compiler                      |          Version:  7.7
      Resolution:                                |         Keywords:
Operating System:  Unknown/Multiple              |     Architecture:
 Type of failure:  None/Unknown                  |  Unknown/Multiple
       Test Case:                                |       Difficulty:
  deriving/should_compile/T8631                  |  Unknown
        Blocking:                                |       Blocked By:
                                                 |  Related Tickets:
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Changes (by goldfire):

 * testcase:   => deriving/should_compile/T8631


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8631#comment:14>
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