[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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Changes (by RyanGlScott):

 * owner:  goldfire => RyanGlScott


Comment:

 I'm working on this at the moment. A very rough attempt at this is located
 at Phab:D3687, but it's nowhere near ready to be merged (the changes I've
 introduced bring out many inscrutable Core Lint errors, which I'll need to
 puzzle over).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11721#comment:7>
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