[GHC] #7859: runghc should give an error when the path to ghc is invalid

[GHC]

#7859: runghc should give an error when the path to ghc is invalid
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  Reporter:  monoidal                           |          Owner:  igloo           
      Type:  bug                                |         Status:  new             
  Priority:  normal                             |      Milestone:  7.8.1           
 Component:  None                               |        Version:  7.6.3           
Resolution:                                     |       Keywords:                  
        Os:  Unknown/Multiple                   |   Architecture:  Unknown/Multiple
   Failure:  Incorrect warning at compile-time  |     Difficulty:  Unknown         
  Testcase:                                     |      Blockedby:                  
  Blocking:                                     |        Related:                  
------------------------------------------------+---------------------------
Changes (by igloo):

  * owner:  => igloo


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7859#comment:4>
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