[GHC] #12143: ApplicativeDo Fails to Desugar 'return True'

[GHC]

#12143: ApplicativeDo Fails to Desugar 'return True'
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        Reporter:  MichaelBurge      |                Owner:  simonmar
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  ApplicativeDo
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:  10892             |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * milestone:  8.2.1 => 8.4.1


Comment:

 This won't happen for 8.2.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12143#comment:6>
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