[GHC] #14005: Explore moving from pretty to prettyprinter

[GHC]

#14005: Explore moving from pretty to prettyprinter
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  task              |               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):  Phab:D3650
       Wiki Page:                    |
  wiki:PrettyErrors                  |
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Comment (by mpickering):

 The perf results don't look very promising for this branch.

 https://perf.haskell.org/ghc/#compare/fefcbfa86b73517d5002366d0703ce694c6d228d/599aa0616211e42cf642a177515d5f8bee431eeb

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14005#comment:13>
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