[GHC] #13760: Review: Fix test output after 'Some tidying up of type pretty-printing'

[GHC]

#13760: Review: Fix test output after 'Some tidying up of type pretty-printing'
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           Reporter:  alanz          |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 The commit
 https://github.com/ghc/ghc/commit/09d5c993aae208e3d34a9e715297922b6ea42b3f
 updates the output for T7861.stderr so that the test passes after
 https://github.com/ghc/ghc/commit/ad14efd539377aaf472ad69449dcaf3e679b0e51

 Review that fixing the test is the correct option here.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13760>
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