[GHC] #13435: Segfaults on levity-polymorphic type class

[GHC]

#13435: Segfaults on levity-polymorphic type class
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |             Keywords:
      Resolution:                    |  LevityPolymorphism
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC accepts       |  Unknown/Multiple
  invalid program                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Richard Eisenberg <rae@…>):

 In [changeset:"66d174a9650c3099e2e694f71b43c2dac89b21b1/ghc" 66d174a/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="66d174a9650c3099e2e694f71b43c2dac89b21b1"
 Test #13435 in typecheck/should_run/T13435
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13435#comment:5>
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