[GHC] #3843: Merge plugins into HEAD

[GHC]

#3843: Merge plugins into HEAD
---------------------------------+------------------------------------------
    Reporter:  dreixel           |        Owner:  simonpj     
        Type:  task              |       Status:  new         
    Priority:  normal            |    Milestone:  7.2.1       
   Component:  Compiler          |      Version:  6.13        
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
---------------------------------+------------------------------------------

Comment(by daniel.is.fischer):

 One more `$(TEST_HC)` needs to be quoted: #5295

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3843#comment:38>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler