[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 nomeata):

 > I'm generally inclined to agree that there's no harm in spilling
 implementation details in the stack trace, I can't think of a single
 language that lets you do what Joachim is suggesting.

 Since when has that become an argument _against_ a change? Especially if
 no one else is doing it, then we should be doing it ;-)

 > That being said, it sounds like it could be a very lightweight extension
 of the existing machinery, so it might be interesting to experiment with.
 But it probably should be a separate ticket :)

 Agreed; #11049.

 If that is implemented you might use that machinery to fix this bug
 without having to maintain two variants of error, as you can suppress the
 CallStack at the point where error (or `foldl1`) is called.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11035#comment:17>
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