[GHC] #9090: Untouchable higher-kinded type variable in connection with RankNTypes, ConstraintKinds and TypeFamilies

[GHC]

#9090: Untouchable higher-kinded type variable in connection with RankNTypes,
ConstraintKinds and TypeFamilies
-------------------------------------+-------------------------------------
              Reporter:  kosmikus    |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.2
  (Type checker)                     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  rejects valid program              |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 This is indeed fixed! Test added.

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9090#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler