[GHC] #13585: ala from Control.Lens.Wrapped panics

[GHC]

#13585: ala from Control.Lens.Wrapped panics
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        Reporter:  fumieval          |                Owner:  goldfire
            Type:  bug               |               Status:  patch
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler (Type    |              Version:  8.2.1-rc1
  checker)                           |
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Linux             |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13333            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by goldfire):

 I've just confirmed that my in-flight patches fix this. I've added a
 regression test to that patch set.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13585#comment:12>
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