[GHC] #11432: Cannot export operator newtype

[GHC]

#11432: Cannot export operator newtype
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        Reporter:  phadej            |                Owner:  skvadrik
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  8.0.1-rc1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Well `(-.->)` isn't (lexically) a data constructor either, so I have no
 idea why it worked before the commit but not after.  If we understand why
 it worked before, we'd have a better chance of not messing something else
 up.

 I see
 {{{
 qcname  :: { Located RdrName }  -- Variable or type constructor
         :  qvar                 { $1 }
         |  oqtycon_no_varcon    { $1 } -- see Note [Type constructors in
 export list]
 }}}
 so obviously look carefully at that `Note`

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11432#comment:19>
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