[GHC] #2647: Serious typo in IntMap.hs

[GHC]

#2647: Serious typo in IntMap.hs
----------------------------------+-----------------------------------------
    Reporter:  sedillard          |        Owner:                  
        Type:  bug                |       Status:  new             
    Priority:  normal             |    Milestone:                  
   Component:  libraries (other)  |      Version:  6.8.3           
    Severity:  critical           |   Resolution:                  
    Keywords:  containers IntMap  |     Testcase:                  
Architecture:  Unknown/Multiple   |           Os:  Unknown/Multiple
----------------------------------+-----------------------------------------
Comment (by sedillard):

 The properties are fine. (Well, each one on its own is fine. Together they
 don't cover the entire library, but that's another issue.) The problem was
 that the default Arbitrary instance for Int generates small numbers, so
 building on top of that we get trees filled with small numbers. I've
 changed the Arbitrary instance for IntMap / IntSet to flip random bits
 before building the tree.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2647#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler