[GHC] #10151: Compilation failed on mac, ghc: panic! (the 'impossible' happened)

[GHC]

#10151: Compilation failed on mac, ghc: panic! (the 'impossible' happened)
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        Reporter:  jaseemabid  |                   Owner:
            Type:  bug         |                  Status:  infoneeded
        Priority:  normal      |               Milestone:
       Component:  GHCi        |                 Version:  7.8.3
      Resolution:              |                Keywords:
Operating System:  MacOS X     |            Architecture:  Unknown/Multiple
 Type of failure:  GHCi crash  |               Test Case:
      Blocked By:              |                Blocking:
 Related Tickets:              |  Differential Revisions:
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Comment (by jaseemabid):

 The same can be compiled with Emacs' haskel-mode and the it runs fine. Its
 an issue only when invoked through `cabal test`

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10151#comment:3>
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