[GHC] #14580: GHC panic (TypeInType) (the 'impossible' happened)

[GHC]

#14580: GHC panic (TypeInType) (the 'impossible' happened)
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"6f6d1050d96e6697cc4559eb54d03959efe28de1/ghc"
 6f6d1050/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="6f6d1050d96e6697cc4559eb54d03959efe28de1"
 Add test for Trac #14580
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14580#comment:1>
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