[GHC] #9186: GHC panic when compiling compdata

[GHC]

#9186: GHC panic when compiling compdata
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        Reporter:  snoyberg          |            Owner:
            Type:  bug               |           Status:  closed
        Priority:  highest           |        Milestone:  7.8.3
       Component:  Compiler          |          Version:  7.8.2
      Resolution:  fixed             |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #8935
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Comment (by snoyberg):

 I can confirm that reverting that commit solves the problem on my system.
 I'll proceed with trying a new Stackage build.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9186#comment:15>
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