[GHC] #1307: Warning refers to code not in the source

[GHC]

#1307: Warning refers to code not in the source
-----------------------+----------------------------------------------------
  Reporter:  guest     |          Owner:         
      Type:  bug       |         Status:  new    
  Priority:  normal    |      Milestone:         
 Component:  Compiler  |        Version:  6.7    
  Severity:  normal    |       Keywords:         
Difficulty:  Unknown   |             Os:  Windows
  Testcase:            |   Architecture:  Unknown
-----------------------+----------------------------------------------------
Here's some source:
 {{{
 toXML = toXMLEx (Just . cap)
   where cap ('_':cs) = cap cs
         cap (c:cs) = toUpper c : cs
         cap "" = ""
 }}}
 And here's a warning that refers to notElem which I've not used:
 {{{
 ../Gmag/Paradise/Addins/XML/Prim.hs:47:8:
     Warning: Pattern match(es) are non-exhaustive
              In the definition of `cap':
                  Patterns not matched: #x with #x `notElem` [""#]
 }}}
   -- Lennart

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1307>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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