[GHC] #7620: Via-C unregisterised build fails for integer-simple

[GHC]

#7620: Via-C unregisterised build fails for integer-simple
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    Reporter:  singpolyma                         |       Owner:                     
        Type:  bug                                |      Status:  patch              
    Priority:  normal                             |   Milestone:                     
   Component:  Compiler                           |     Version:  7.7                
    Keywords:  unregistered via-c integer-simple  |          Os:  Unknown/Multiple   
Architecture:  Unknown/Multiple                   |     Failure:  Building GHC failed
  Difficulty:  Unknown                            |    Testcase:                     
   Blockedby:                                     |    Blocking:  7623               
     Related:                                     |  
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Comment(by igloo):

 The patch looks right to me, but I think there might be a larger problem
 here.

 `halfBoundUp` and `fullBound` are of type `Digit`, which is a synonym for
 `Word#`, so why do we end up representing them with `Int`?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7620#comment:10>
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