[GHC] #3234: foldr/single no longer firing in GHC 6.10

[GHC]

#3234: foldr/single no longer firing in GHC 6.10
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    Reporter:  r6                              |        Owner:                  
        Type:  bug                             |       Status:  closed          
    Priority:  normal                          |    Milestone:  6.12.1          
   Component:  Compiler                        |      Version:  6.10.3          
    Severity:  normal                          |   Resolution:  fixed           
    Keywords:                                  |   Difficulty:  Unknown         
    Testcase:  simplCore/should_compile/T3234  |           Os:  Unknown/Multiple
Architecture:  Unknown/Multiple                |  
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Changes (by simonpj):

  * testcase:  => simplCore/should_compile/T3234
  * status:  new => closed
  * resolution:  => fixed

Comment:

 I fixed this as part of the big INLINE patch.  The relevant note is in
 `Desugar.lhs`, namely `Note [Desugaring RULE left hand sides]`.

 I've added a test too.

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3234#comment:2>
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