[GHC] #10744: Allow oneShot to work with unboxed types

[GHC]

#10744: Allow oneShot to work with unboxed types
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        Reporter:  akio              |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by nomeata):

 Out of curiosity: How are you using `oneShot`? We added it to make foldl
 list fusion more reliable, but never actually had a case where it would be
 better than Call Arity, so I am very interested in examples of effective
 uses of `oneShot`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10744#comment:2>
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