[GHC] #2893: Implement "Quantified contexts" proposal

[GHC]

#2893: Implement "Quantified contexts" proposal
---------------------------------+------------------------------------------
    Reporter:  porges            |       Owner:                  
        Type:  feature request   |      Status:  new             
    Priority:  normal            |   Milestone:  _|_             
   Component:  Compiler          |     Version:  6.10.1          
    Keywords:  proposal          |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by duairc):

 * cc: shane@… (added)


-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2893#comment:11>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler