[GHC] #9507: ghc-pkg mode to query by package-key

[GHC]

#9507: ghc-pkg mode to query by package-key
-------------------------------------+-------------------------------------
        Reporter:  ezyang            |                   Owner:  ezyang
            Type:  feature request   |                  Status:  patch
        Priority:  normal            |               Milestone:  7.10.2
       Component:  ghc-pkg           |                 Version:  7.9
      Resolution:                    |                Keywords:  backpack
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:  Phab:D946
-------------------------------------+-------------------------------------
Changes (by ezyang):

 * status:  new => patch
 * differential:   => Phab:D946


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9507#comment:2>
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