[GHC] #913: instance Ord (StableName a)

[GHC]

#913: instance Ord (StableName a)
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 Reporter:  ekarttun         |          Owner:             
     Type:  feature request  |         Status:  new        
 Priority:  normal           |      Milestone:  6.8        
Component:  libraries/base   |        Version:  6.4.2      
 Severity:  normal           |     Resolution:             
 Keywords:                   |     Difficulty:  Easy (1 hr)
 Testcase:                   |   Architecture:  Unknown    
       Os:  Unknown          |  
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Comment (by simonmar):

 From Jan-Willem Maessen:

   I feel like I may have already run into this problem with the Eq
   instance of stableNames.  But I was never able to verify for sure
   that this was going on, and it's rather hard to guarantee that the
   object referred to by the stable name actually outlives the Int# (if
   we stick to Haskell code alone).

   If I ever get a reproducible bug whose symptoms I understand, I'll
   let you know. :-)  But just to make sure you are aware that this
   could actually be causing trouble in practice.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/913>
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