[GHC] #4379: Add Random instances for more base types

[GHC]

#4379: Add Random instances for more base types
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    Reporter:  basvandijk        |       Owner:                  
        Type:  proposal          |      Status:  new             
    Priority:  normal            |   Component:  libraries/random
     Version:  6.12.3            |    Keywords:                  
    Testcase:                    |   Blockedby:                  
          Os:  Unknown/Multiple  |    Blocking:                  
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
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Comment(by basvandijk):

 [http://thread.gmane.org/gmane.comp.lang.haskell.libraries/14035 Thread]
 on the libraries list.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4379#comment:1>
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