[GHC] #9641: Point-free do block gives missing instance error

[GHC]

#9641: Point-free do block gives missing instance error
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              Reporter:  rasfar      |            Owner:  rwbarton
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:              |          Version:  7.8.1
  Documentation                      |         Keywords:  plugins
            Resolution:              |  HasDynFlags
      Operating System:  Linux       |     Architecture:  x86
       Type of failure:              |       Difficulty:  Unknown
  Documentation bug                  |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Comment (by Reid Barton <rwbarton@…>):

 In [changeset:"071167c793489f4071c348223f9591d20dbe11a3/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="071167c793489f4071c348223f9591d20dbe11a3"
 User's Guide: Fix compiler plugin example (#9641, #7682)

 The previous fix was incorrectly eta-reduced.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9641#comment:2>
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