[GHC] #16233: HIE file generation is inefficient

[GHC]

#16233: HIE file generation is inefficient
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        Reporter:  harpocrates       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.7
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15320            |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by int-index):

 It seems like a great motivation to do something along the lines of the
 design in Phab:D5047

 Simon, what do you think?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16233#comment:3>
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