[GHC] #8603: GHC crashes on some code using StateT monad transformer

[GHC]

#8603: GHC crashes on some code using StateT monad transformer
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        Reporter:  person1729                   |            Owner:
            Type:  bug                          |           Status:  closed
        Priority:  normal                       |        Milestone:
       Component:  Compiler (Type checker)      |          Version:  7.6.3
      Resolution:  fixed                        |         Keywords:
Operating System:  MacOS X                      |     Architecture:  x86_64
 Type of failure:  Compile-time crash           |  (amd64)
       Test Case:  typecheck/should_fail/T8603  |       Difficulty:
        Blocking:                               |  Unknown
                                                |       Blocked By:
                                                |  Related Tickets:
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Comment (by simonpj):

 The point is that a type-incorrect program made GHC crash.  That shouldn't
 happen, and that's what I fixed.  Making the program itself right is
 another matter, as you point out.

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8603#comment:5>
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