[GHC] #12993: GHC 8.0.2-rc2 template Haskell interface file issue

[GHC]

#12993: GHC 8.0.2-rc2 template Haskell interface file issue
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        Reporter:  glguy             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.0.2
       Component:  Template Haskell  |              Version:  8.0.2-rc2
      Resolution:                    |             Keywords:
Operating System:  MacOS X           |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * cc: osa1 (added)


Comment:

 The culprit here appears to be 3a00ff92a3ee66c096b85b180d247d1a471a6b6e,
 {{{
 commit 3a00ff92a3ee66c096b85b180d247d1a471a6b6e
 Author: Ömer Sinan Ağacan <omeragacan at gmail.com>
 Date:   Fri May 27 11:02:47 2016 -0400

     Do not init record accessors as exported

     This was causing redundant code generation when accessors are not
     actually exported, as they were being marked as "exported" at
     initialization.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12993#comment:8>
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