[GHC] #1911: -w doesn't turn off nullModuleExport

[GHC]

#1911: -w doesn't turn off nullModuleExport
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    Reporter:  AndreaRossato     |        Owner:  AndreaRossato   
        Type:  bug               |       Status:  assigned        
    Priority:  normal            |    Milestone:  6.12.1          
   Component:  Compiler          |      Version:  6.8.1           
    Severity:  minor             |   Resolution:                  
    Keywords:                    |   Difficulty:  Easy (1 hr)     
    Testcase:                    |           Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |  
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Changes (by igloo):

  * milestone:  6.10 branch => 6.12.1

Comment:

 There's a patch attached to this, so we should take a look.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1911#comment:15>
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