[GHC] #10600: -fwarn-incomplete-patterns doesn't work with -fno-code

[GHC]

#10600: -fwarn-incomplete-patterns doesn't work with -fno-code
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        Reporter:  akio              |                Owner:  ezyang
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  7.10.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:  driver/T8101b
      Blocked By:                    |             Blocking:
 Related Tickets:  #8101             |  Differential Rev(s):  Phab:D1278
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"c9eb4385aad248118650725b7b699bb97ee21c0d/ghc"
 c9eb4385/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c9eb4385aad248118650725b7b699bb97ee21c0d"
 Desugar modules compiled with -fno-code

 Previously modules with hscTarget == HscNothing were not desugared.
 This patch changes behavior so that all modules HsSrcFile Modules except
 GHC.Prim
 are desugared. Modules with hscTarget == HscNothing are not simplified.

 Warnings and errors produced by the desugarer will now be produced when
 compiling with -fno-code.

 HscMain.finishTypecheckingOnly is removed, HscMain.hscIncrementalCompile
 is
 simplified a bit, and HscMain.finish takes in the removed logic. I think
 this
 is easier to follow.

 Updates haddock submodule.

 Tests T8101, T8101b, T10600 are no longer expect_broken.

 Reviewers: ezyang, austin, bgamari

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #10600

 Differential Revision: https://phabricator.haskell.org/D3542
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10600#comment:26>
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