[GHC] #8631: Need ImpredicativeTypes for GeneralizedNewtypeDeriving?

[GHC]

#8631: Need ImpredicativeTypes for GeneralizedNewtypeDeriving?
-------------------------------------------------+-------------------------
        Reporter:  goldfire                      |            Owner:
            Type:  bug                           |           Status:  merge
        Priority:  normal                        |        Milestone:  7.8.1
       Component:  Compiler                      |          Version:
      Resolution:                                |  7.8.1-rc1
Operating System:  Unknown/Multiple              |         Keywords:
 Type of failure:  None/Unknown                  |     Architecture:
       Test Case:                                |  Unknown/Multiple
  deriving/should_compile/T8631                  |       Difficulty:
        Blocking:                                |  Unknown
                                                 |       Blocked By:
                                                 |  Related Tickets:
-------------------------------------------------+-------------------------
Changes (by goldfire):

 * version:  7.7 => 7.8.1-rc1
 * milestone:   => 7.8.1


Comment:

 Putting this on Austin's radar for 7.8.1.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8631#comment:15>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler