[GHC] #7383: implement proper type promotion in compilation of C calls

[GHC]

#7383: implement proper type promotion in compilation of C calls
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    Reporter:  igloo             |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  high              |   Milestone:  7.6.2           
   Component:  Compiler          |     Version:  7.6.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:  7684              |  
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Changes (by tibbe):

  * related:  => 7684


Comment:

 cgrun071 now segfaults. See linked ticket.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7383#comment:2>
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