[GHC] #12035: hs-boot knot tying insufficient for ghc --make

[GHC]

#12035: hs-boot knot tying insufficient for ghc --make
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        Reporter:  ezyang            |                Owner:
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |             Keywords:  hs-boot
      Resolution:                    |  backpack
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2213
       Wiki Page:                    |
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Comment (by Edward Z. Yang <ezyang@…>):

 In [changeset:"e528061e2779ce475927f44d817eaf15a02cbac7/ghc" e528061/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="e528061e2779ce475927f44d817eaf15a02cbac7"
 We also need to retypecheck before when we do parallel make.

 Summary:
 Kept this seperate from the previous patch for clarity.
 Comes with a test.

 Signed-off-by: Edward Z. Yang <ezyang at cs.stanford.edu>

 Test Plan: validate

 Reviewers: simonpj, austin, bgamari

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2220

 GHC Trac Issues: #12035
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12035#comment:5>
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