[GHC] #4928: Add primops for copying/cloning an array

[GHC]

#4928: Add primops for copying/cloning an array
------------------------------+---------------------------------------------
  Reporter:  tibbe            |          Owner:                  
      Type:  feature request  |         Status:  new             
  Priority:  normal           |      Milestone:  7.2.1           
 Component:  Runtime System   |        Version:  7.0.2           
Resolution:                   |       Keywords:                  
  Testcase:                   |      Blockedby:                  
Difficulty:                   |             Os:  Unknown/Multiple
  Blocking:                   |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown     |  
------------------------------+---------------------------------------------
Changes (by tibbe):

  * owner:  ezyang =>
  * status:  patch => new


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4928#comment:26>
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