[GHC] #9004: Add sortOn function to Data.List

[GHC]

#9004: Add sortOn function to Data.List
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        Reporter:  JohnWiegley       |                   Owner:
            Type:  feature request   |                  Status:  closed
        Priority:  normal            |               Milestone:  7.10.1
       Component:  libraries/base    |                 Version:  7.8.2
      Resolution:  fixed             |                Keywords:  report-
Operating System:  Unknown/Multiple  |  impact
 Type of failure:  None/Unknown      |            Architecture:
      Blocked By:                    |  Unknown/Multiple
 Related Tickets:                    |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
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Changes (by hvr):

 * cc: ekmett (added)
 * keywords:   => report-impact


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9004#comment:5>
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