[GHC] #11721: GADT-syntax data constructors don't work well with TypeApplications

[GHC]

#11721: GADT-syntax data constructors don't work well with TypeApplications
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        Reporter:  goldfire          |                Owner:  RyanGlScott
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
                                     |  TypeApplications
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13848            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 See discussion in #13848 (only closed because duplicate)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11721#comment:8>
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