[GHC] #16139: GHC confused about type synonym kind with QuantifiedConstraints

[GHC]

#16139: GHC confused about type synonym kind with QuantifiedConstraints
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        Reporter:  Ashley Yakeley    |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.6.3
      Resolution:                    |             Keywords:
                                     |  QuantifiedConstraints
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 See #16148, which I've created to gather these awkward type/constraint
 issues together.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16139#comment:5>
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