[GHC] #12242: panic with complicated type/kind/class expressions

[GHC]

#12242: panic with complicated type/kind/class expressions
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        Reporter:  Ashley Yakeley    |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  GHC rejects       |  (amd64)
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Ashley Yakeley):

 Using `resolver: nightly-2016-06-27` in my `stack.yaml`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12242#comment:1>
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