[GHC] #14218: GHC.Stack.HasCallStack not compatible with constraint synonyms

[GHC]

#14218: GHC.Stack.HasCallStack not compatible with constraint synonyms
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        Reporter:  ntc2              |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      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 ntc2):

 Is this a known implicit params bug or "feature" then? In any case, I also
 vote for (2) :)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14218#comment:5>
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