[GHC] #5210: Add primops for copying/cloning byte arrays

[GHC]

#5210: Add primops for copying/cloning byte arrays
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    Reporter:  tibbe             |        Owner:  dterei      
        Type:  feature request   |       Status:  patch       
    Priority:  high              |    Milestone:  7.2.1       
   Component:  Compiler          |      Version:  7.0.3       
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by dterei):

 Applied:

 c7f744bce65cfa2a3d18d9687df889de54333823
 b00b36196a88ad6b9054244caaec926f6f9db2cf
 f141e108deade85c51bf064e9ccbca785ad8e1c1

 Do we want to close this ticket now or leave open for tracking future work
 like the Addr# stuff?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5210#comment:13>
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