[GHC] #13360: Add a flag to enable inferring HasCallStack constraints

[GHC]

#13360: Add a flag to enable inferring HasCallStack constraints
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        Reporter:  gridaphobe        |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.0.1
      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):

 Replying to [comment:36 saurabhnanda]:
 > So, I guess it has been established that `HasCallStack` cannot be
 replaced with `-prof` and that it has independent utility, right?

 `HasCallStack` definitely has independent utility, yes.

 The question Ben is raising is whether this proposed flag to add
 `HasCallStack` constraints throughout a module has independent utility. I
 think the answer is still yes, as I argued above, but it's admittedly less
 obvious than the original use-case for `HasCallStack` (opt-in source
 locations on a per-function basis).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13360#comment:37>
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