[GHC] #15900: Can't boot with GHC 8.6.2

[GHC]

#15900: Can't boot with GHC 8.6.2
-------------------------------------+-------------------------------------
        Reporter:  osa1              |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.6.3
       Component:  Compiler          |              Version:  8.6.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5341
       Wiki Page:                    |
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Comment (by Andreas Klebinger <klebinger.andreas@…>):

 In [changeset:"4efd1b487e10c8cdbc1bca10c45f0887642a5c48/ghc" 4efd1b4/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="4efd1b487e10c8cdbc1bca10c45f0887642a5c48"
 bump haddock submodule

 Summary:
 ae2c9b40f5b6bf272251d1f4107c60003f541b62 introduced some changes that
 broke haddock, [1] fixed them and this patch bumps the haddock submodule
 to include the fixes.

 [1]: https://github.com/haskell/haddock/pull/970

 Test Plan: build haddock (make or hadrian)

 Reviewers: bgamari, AndreasK

 Reviewed By: AndreasK

 Subscribers: osa1, AndreasK, rwbarton, carter

 GHC Trac Issues: #15900

 Differential Revision: https://phabricator.haskell.org/D5341
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15900#comment:4>
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