[GHC] #2843: Missing "Defined but not used" for recursive expressions

[GHC]

#2843: Missing "Defined but not used" for recursive expressions
---------------------------------+------------------------------------------
    Reporter:  guest             |        Owner:                  
        Type:  bug               |       Status:  closed          
    Priority:  normal            |    Milestone:                  
   Component:  Compiler          |      Version:  6.8.2           
    Severity:  normal            |   Resolution:  fixed           
    Keywords:                    |   Difficulty:  Unknown         
    Testcase:                    |           Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |  
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Changes (by igloo):

  * status:  new => closed
  * difficulty:  => Unknown
  * resolution:  => fixed

Comment:

 Thanks for the report. Happily, 6.10.1 (and the HEAD) already warns about
 this correctly:
 {{{
 b.hs:4:6: Warning: Defined but not used: `b'
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2843#comment:1>
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