[GHC] #8767: Add rules involving `coerce` to the libraries

[GHC]

#8767: Add rules involving `coerce` to the libraries
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        Reporter:  nomeata                       |            Owner:
            Type:  task                          |           Status:  new
        Priority:  normal                        |        Milestone:
       Component:  libraries/base                |  7.10.1
      Resolution:                                |          Version:  7.9
Operating System:  Unknown/Multiple              |         Keywords:
 Type of failure:  None/Unknown                  |     Architecture:
       Test Case:                                |  Unknown/Multiple
  tests/simplCore/should_run/T2110.hs            |       Difficulty:
        Blocking:                                |  Unknown
                                                 |       Blocked By:  8718
                                                 |  Related Tickets:  #2110
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Changes (by thoughtpolice):

 * version:  7.8.1-rc2 => 7.9
 * milestone:  7.8.1 => 7.10.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8767#comment:16>
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