[GHC] #10083: ghc: panic! (the 'impossible' happened)

[GHC]

#10083: ghc: panic! (the 'impossible' happened)
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        Reporter:  hedayaty          |                   Owner:
            Type:  bug               |                  Status:  infoneeded
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by hedayaty):

 OK.
 We can take the first one as default solution.
 Since the code is being generated, I can not modify the code.
 However, we might try diving into code generator!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10083#comment:15>
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