[GHC] #3693: Show stack traces

[GHC]

#3693: Show stack traces
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  Reporter:  jpet             |          Owner:                  
      Type:  feature request  |         Status:  new             
  Priority:  normal           |      Milestone:  _|_             
 Component:  Runtime System   |        Version:  6.10.4          
Resolution:                   |       Keywords:                  
Difficulty:                   |             Os:  Unknown/Multiple
  Testcase:                   |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown     |  
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Comment (by guest):

 Might it be easy to get non-lexical call stacks? That way you could at
 least see the chain of "case" statements that forced the thunk producing
 an error. And some information is better than none at all.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3693#comment:2>
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