[GHC] #2646: Expand folding options for Sets and Maps

[GHC]

#2646: Expand folding options for Sets and Maps
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 Reporter:  sedillard          |          Owner:                  
     Type:  proposal           |         Status:  new             
 Priority:  normal             |      Milestone:  Not GHC         
Component:  libraries (other)  |        Version:  6.8.3           
 Severity:  normal             |     Resolution:                  
 Keywords:  containers         |     Difficulty:  Unknown         
 Testcase:                     |   Architecture:  Unknown/Multiple
       Os:  Unknown/Multiple   |  
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Comment (by Deewiant):

 It'd also be nice to export the in-order fold, `foldi`, which exists but
 is commented out for some reason.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2646#comment:2>
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