[GHC] #1451: Provide way to show the origin of a constraint

[GHC]

#1451: Provide way to show the origin of a constraint
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    Reporter:  iampure at gmail.com  |        Owner:         
        Type:  feature request    |       Status:  new    
    Priority:  normal             |    Milestone:         
   Component:  Compiler           |      Version:  6.6.1  
    Severity:  normal             |   Resolution:         
    Keywords:                     |   Difficulty:  Unknown
          Os:  Unknown            |     Testcase:         
Architecture:  Unknown            |  
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Comment (by simonpj):

 If you could give a concrete example of what you have in mind, it'd help.
 That is, exactly what do you want the programmer to be able to do or say?
 GHC does indeed report the origins for constraints in error messages, for
 example.

 S

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1451>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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