[GHC] #10859: Generated Eq instance associates && wrongly

[GHC]

#10859: Generated Eq instance associates && wrongly
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        Reporter:  nomeata           |                   Owner:  simonpj
            Type:  bug               |                  Status:  new
        Priority:  lowest            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10858            |  Differential Revisions:
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Comment (by simonpj):

 I'm afraid I have no idea.

 Remember that we are also (#10854) trying to generate `HsExpr`s that have
 explicit `HsParens` when needed.  So I'm all for this clean-up.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10859#comment:2>
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