[GHC] #16167: -ddump-json doesn't work with -e (was: -ddump-json output empty with runghc)

[GHC]

#16167: -ddump-json doesn't work with -e
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        Reporter:  shmish111         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.6.3
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
 Type of failure:  Incorrect         |  (amd64)
  error/warning at compile-time      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by mpickering):

 * keywords:   => newcomer
 * version:  8.4.3 => 8.6.3
 * os:  MacOS X => Unknown/Multiple


Comment:

 Ok, so it seems that `-ddump-json` doesn't work with `-e`. Shouldn't be
 too hard to fix if someone feels inclined. Thanks for narrowing it down.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16167#comment:5>
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