[GHC] #4798: Make HsIf more polymorphic with RebindableSyntax

[GHC]

#4798: Make HsIf more polymorphic with RebindableSyntax
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  Reporter:  nsch                     |          Owner:  nsch            
      Type:  feature request          |         Status:  closed          
  Priority:  normal                   |      Milestone:                  
 Component:  Compiler (Type checker)  |        Version:  7.0.1           
Resolution:  fixed                    |       Keywords:                  
  Testcase:                           |      Blockedby:                  
Difficulty:                           |             Os:  Unknown/Multiple
  Blocking:                           |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown             |  
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Changes (by simonpj):

  * status:  patch => closed
  * resolution:  => fixed


Comment:

 Thanks.  I've reviewed and committed the patch.  (I added some comments.)
 {{{
 Thu Dec  2 12:25:40 GMT 2010  simonpj at microsoft.com
   * Make rebindable if-then-else a little more permissive

   See Note [Rebindable syntax for if].  Fixes Trac #4798.
   Thanks to Nils Schweinsberg <mail at n-sch.de>

     M ./compiler/typecheck/TcExpr.lhs -6 +28
 }}}

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4798#comment:2>
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