[GHC] #5977: Allow ignoring global package db

[GHC]

#5977: Allow ignoring global package db
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    Reporter:  duncan            |       Owner:  pcapriotti      
        Type:  feature request   |      Status:  new             
    Priority:  high              |   Milestone:  7.6.1           
   Component:  Compiler          |     Version:  7.4.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Changes (by simonpj):

  * owner:  => pcapriotti


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5977#comment:3>
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