[GHC] #3094: Some GHC.* module should export word size and heap object header size

[GHC]

#3094: Some GHC.* module should export word size and heap object header size
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        Reporter:  duncan            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  libraries         |              Version:  6.10.1
  (other)                            |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 It seems to me like the new `ghc-heap` package would be a good place for
 this.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3094#comment:9>
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