[GHC] #8299: Add richer data model address arithmetic: AddrDiff and AddrInt (ie d Int_ptr_diff and Int_ptr_size)

[GHC]

#8299: Add richer data model address arithmetic: AddrDiff and AddrInt (ie d
Int_ptr_diff and Int_ptr_size)
-------------------------------------+-------------------------------------
              Reporter:  carter      |            Owner:
                  Type:  feature     |           Status:  new
  request                            |        Milestone:  7.12.1
              Priority:  high        |          Version:  7.6.3
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Project (more
  Unknown/Multiple                   |  than a week)
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:
             Test Case:              |
              Blocking:  8287        |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by carter):

 * milestone:  7.10.1 => 7.12.1


Comment:

 this is still an issue, but should be punted to 7.12

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8299#comment:6>
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