[GHC] #9163: Ptr should have a phantom role

[GHC]

#9163: Ptr should have a phantom role
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        Reporter:  simonpj                      |            Owner:
            Type:  bug                          |           Status:  closed
        Priority:  normal                       |        Milestone:  7.10.1
       Component:  Compiler                     |          Version:  7.8.2
      Resolution:  fixed                        |         Keywords:
Operating System:  Unknown/Multiple             |     Architecture:
 Type of failure:  None/Unknown                 |  Unknown/Multiple
       Test Case:  roles/should_compile/Roles2  |       Difficulty:
        Blocking:                               |  Unknown
                                                |       Blocked By:
                                                |  Related Tickets:  #9164
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Changes (by thoughtpolice):

 * status:  merge => closed
 * resolution:   => fixed
 * milestone:  7.8.4 => 7.10.1


Comment:

 I'm leaving these as is out of 7.8.3; I don't think they're critical, and
 some of the refactorings in `base` to `Data.Coerce` mean the original
 patches don't quite apply cleanly.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9163#comment:29>
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