[GHC] #8793: Improve GHC.Event.IntTable performance

[GHC]

#8793: Improve GHC.Event.IntTable performance
--------------------------------------------+------------------------------
        Reporter:  cdk                      |            Owner:
            Type:  task                     |           Status:  patch
        Priority:  normal                   |        Milestone:  7.10.1
       Component:  libraries/base           |          Version:  7.6.3
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  Runtime performance bug  |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
--------------------------------------------+------------------------------
Changes (by hvr):

 * cc: hvr (added)
 * failure:  None/Unknown => Runtime performance bug
 * milestone:  7.8.1 => 7.10.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8793#comment:2>
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