[GHC] #13538: Weird kind inference problems with closed type families

[GHC]

#13538: Weird kind inference problems with closed type families
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        Reporter:  achirkin          |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler (Type    |              Version:  8.0.2
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  error/warning at compile-time      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13135            |  Differential Rev(s):  Phab:D3426
       Wiki Page:                    |
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Changes (by RyanGlScott):

 * status:  new => patch
 * differential:   => Phab:D3426
 * related:   => #13135
 * milestone:   => 8.2.1


Comment:

 It seems that commit 2b64e926a628fb2a3710b0360123ea73331166fe (#13135)
 fixes this. I've added a regression test for this in Phab:D3426.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13538#comment:2>
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