[GHC] #5556: Support pin-changing on ByteArray#s

[GHC]

#5556: Support pin-changing on ByteArray#s
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              Reporter:  pumpkin     |            Owner:
                  Type:  feature     |           Status:  new
  request                            |        Milestone:  7.10.1
              Priority:  normal      |          Version:  7.2.1
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by jystic):

 * cc: jystic@… (added)
 * difficulty:   => Unknown


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5556#comment:10>
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