[GHC] #4012: Compilation results are not deterministic

[GHC]

#4012: Compilation results are not deterministic
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        Reporter:  kili              |                   Owner:  Fuuzetsu
            Type:  bug               |                  Status:  patch
        Priority:  high              |               Milestone:  7.10.2
       Component:  Compiler          |                 Version:  6.12.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Other             |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by thoughtpolice):

 To be clear: I'm marking this as patch to make sure Phab:D910 is not lost
 and properly merged to 7.10. (It'll be remilestoned afterwords).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:88>
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