[GHC] #667: Efficient Map <-> Set conversions

[GHC]

#667: Efficient Map <-> Set conversions
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 Reporter:  jpbernardy                |          Owner:  jpbernardy
     Type:  feature request           |         Status:  assigned  
 Priority:  normal                    |      Milestone:  Not GHC   
Component:  libraries/base            |        Version:  6.4.1     
 Severity:  normal                    |     Resolution:            
 Keywords:  Data Map Set collections  |     Difficulty:  Unknown   
 Testcase:  N/A                       |   Architecture:  Unknown   
       Os:  Unknown                   |  
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Changes (by simonmar):

  * milestone:  6.8 branch => Not GHC

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/667#comment:8>
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