[GHC] #11035: Add implicit call-stacks to partial functions in base

[GHC]

#11035: Add implicit call-stacks to partial functions in base
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        Reporter:  gridaphobe        |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by gridaphobe):

 Possibly, I admit I'm not super familiar with the DWARF work. My main
 concern would be that the DWARF stack trace will expose haskell's lazy
 evaluation just like the cost-centre traces do.

 I find these difficult to debug because they jump all over the place as
 values are demanded. That might be useful for performance debugging, but
 for debugging a crash I just want to know '''where''' things were called,
 not what sequence of "demandings" led me to the crash. In other words, I
 want a trace based on the static call graph, which is what the implicit
 call-stacks provide.

 I hope that makes sense.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11035#comment:4>
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