[GHC] #7153: GHC crashes with "(Array.!): undefined array element" while building

[GHC]

#7153: GHC crashes with "(Array.!): undefined array element" while building
---------------------------------+------------------------------------------
    Reporter:  tibbe             |       Owner:  pcapriotti      
        Type:  bug               |      Status:  new             
    Priority:  highest           |   Milestone:  7.6.1           
   Component:  Compiler          |     Version:  7.6.1-rc1       
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
---------------------------------+------------------------------------------

Comment(by tibbe):

 It's not reproducible for me, after deleting old `.o` and `.hi` files.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7153#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler