[GHC] #10829: Simplification in the RHS of rules

[GHC]

#10829: Simplification in the RHS of rules
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        Reporter:  afarmer           |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.10.3
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  10528             |  Differential Revisions:  D1246
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Comment (by simonpj):

 Looks fine to me. I'd be happy to add it to 7.10.3.  But what about the
 RHS (see comment:4)?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10829#comment:9>
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