[GHC] #4076: Add Applicative instance for STM

[GHC]

#4076: Add Applicative instance for STM
-------------------------------+--------------------------------------------
  Reporter:  basvandijk        |          Owner:  simonmar        
      Type:  proposal          |         Status:  closed          
  Priority:  normal            |      Milestone:                  
 Component:  libraries/base    |        Version:  6.12.2          
Resolution:  fixed             |       Keywords:                  
        Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown      |     Difficulty:  Unknown         
  Testcase:                    |      Blockedby:                  
  Blocking:                    |        Related:                  
-------------------------------+--------------------------------------------
Changes (by simonmar):

  * difficulty:  => Unknown


Comment:

 Replying to [comment:5 Lemming]:
 > I am still using GHC-6.12.3. How about adding an orphan instance to the
 stm package that is defined for the GHC versions that do not provide the
 Applicative instance?

 Patches welcome...

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4076#comment:6>
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