[GHC] #9596: Create monoidal category framework for arrow desugarer

[GHC]

#9596: Create monoidal category framework for arrow desugarer
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              Reporter:              |            Owner:  spacekitteh
  spacekitteh                        |           Status:  new
                  Type:  task        |        Milestone:  7.10.1
              Priority:  normal      |          Version:
             Component:  GHC API     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Project (more
  Unknown/Multiple                   |  than a week)
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:  #7828
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by jstolarek):

 Speaking of #7828 I have to admit my work on it has stalled in favour of
 #6018. Sophie, feel free to take over #7828 if you feel like it. I'll be
 happy to share what I've learnt and implemented.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9596#comment:6>
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