[GHC] #10365: Make Semigroup as a superclass of Monoid

[GHC]

#10365: Make Semigroup as a superclass of Monoid
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        Reporter:  gidyn             |                   Owner:  ekmett
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  libraries/base    |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Changes (by bergmark):

 * cc: bergmark (added)


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10365#comment:4>
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