[GHC] #14158: (Control.Category.id @(->) >>=) causes GHC panic

[GHC]

#14158: (Control.Category.id @(->) >>=) causes GHC panic
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:
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 RyanGlScott):

 Indeed, `Small refactor of getRuntimeRep` is the first commit in which the
 program above works.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14158#comment:3>
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