[GHC] #960: Lexical call site string

[GHC]

#960: Lexical call site string
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 Reporter:  paul at cogito.org.uk  |          Owner:         
     Type:  feature request     |         Status:  new    
 Priority:  normal              |      Milestone:         
Component:  Compiler            |        Version:  6.6    
 Severity:  normal              |     Resolution:         
 Keywords:                      |     Difficulty:  Unknown
 Testcase:                      |   Architecture:  Unknown
       Os:  Unknown             |  
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Comment (by pauljohnson):

 I haven't studied Template Haskell, but won't that just give the location
 of the "error" call?  I want the place the enclosing function was called
 from.  So if "head" calls "error" I want to see what called "head".

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/960>
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