[GHC] #11355: TypeApplications + RankNTypes permits "impredicativity"

[GHC]

#11355: TypeApplications + RankNTypes permits "impredicativity"
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        Reporter:  adamgundry        |                Owner:  goldfire
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:
                                     |  TypeApplications
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by goldfire):

 * owner:   => goldfire
 * keywords:  TypeInType => TypeApplications


Comment:

 This is not desirable. I think I see why this happens, and I have a fix,
 but I actually can't reproduce. Do you have a minimal complete test case?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11355#comment:2>
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