[GHC] #4012: Compilation results are not deterministic

[GHC]

#4012: Compilation results are not deterministic
-------------------------------+--------------------------------------------
  Reporter:  kili              |          Owner:  igloo               
      Type:  bug               |         Status:  new                 
  Priority:  high              |      Milestone:  7.6.2               
 Component:  Compiler          |        Version:  6.12.2              
Resolution:                    |       Keywords:                      
        Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple    
   Failure:  Other             |     Difficulty:  Difficult (2-5 days)
  Testcase:                    |      Blockedby:                      
  Blocking:                    |        Related:                      
-------------------------------+--------------------------------------------

Comment(by simonmar):

 ... or, if we like to keep the original names for readability, we could do
 local renaming only when computing the hash, and throw away the renamed
 version afterwards (basically hash the !DeBruijn representation).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4012#comment:31>
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