[GHC] #14670: -XRebindableSyntax needs return?

[GHC]

#14670: -XRebindableSyntax needs return?
-------------------------------------+-------------------------------------
        Reporter:  jackkelly         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
                                     |  RebindableSyntax
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHC rejects       |            Test Case:
  valid program                      |  rebindable/T14670
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by bgamari):

 * testcase:   => rebindable/T14670
 * milestone:   => 8.6.1


Comment:

 Indeed that is quite curious. My first thought was perhaps `ApplicativeDo`
 was involved, but it's not enabled.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14670#comment:1>
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