30b190a use ghc 7.8.4

Authored and Committed by petersen 9 years ago
    use ghc 7.8.4
    
    Strictly 2014.2.0.0 uses 7.8.3 but there is no HP release
    yet for 7.8.4, which is just a bugfix release anyway.
    No changes needed to the haskell-platform source.
    
        
file modified
+5 -2