[GHC] #13190: Add a flag to dump compiler output as JSON

[GHC]

#13190: Add a flag to dump compiler output as JSON
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        Reporter:  mpickering        |                Owner:  mpickering
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       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):  Phab:D3010
       Wiki Page:                    |
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Comment (by simonpj):

 > All compiler output will be formatted as structured JSON

 Including the output of `-dverbose-core2core`, `-ddump-types` etc etc?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13190#comment:3>
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