[GHC] #911: Better information about the location of exceptions

[GHC]

#911: Better information about the location of exceptions
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  Reporter:  simonmar         |          Owner:         
      Type:  feature request  |         Status:  new    
  Priority:  normal           |      Milestone:         
 Component:  Runtime System   |        Version:  6.4.2  
  Severity:  normal           |     Resolution:         
  Keywords:                   |             Os:  Unknown
Difficulty:  Unknown          |   Architecture:  Unknown
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Comment (by ekarttun):

 The new ghci debugging stuff could help with locating the error.

 The user's guide should probably have a note on locating failed pattern
 matches.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/911>
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