[GHC] #676: Write a performance checker for collections.

[GHC]

#676: Write a performance checker for collections.
-------------------------------+--------------------------------------------
    Reporter:  jpbernardy      |        Owner:             
        Type:  task            |       Status:  new        
    Priority:  normal          |    Milestone:             
   Component:  libraries/base  |      Version:  6.4.1      
    Severity:  normal          |     Keywords:  collections
          Os:  Unknown         |   Difficulty:  Unknown    
Architecture:  Unknown         |  
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Addition of new collection types demand a way to check their performances
 consistently.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/676>
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