[GHC] #3389: CPP strips out C-style comments

[GHC]

#3389: CPP strips out C-style comments
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        Reporter:  nominolo          |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  normal            |        Milestone:  7.0.1
       Component:  Driver            |          Version:  6.10.2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:  T3389             |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by Joachim Breitner <mail@…>):

 In [changeset:168ac1b55f21e541487bf65851e20fe5a92a951d/testsuite]:
 {{{
 #!CommitTicketReference repository="testsuite"
 revision="168ac1b55f21e541487bf65851e20fe5a92a951d"
 In the test that tests -optP -C, also pass -optP -ffreestanding

 This closes #3389, and makes the testsuite go through again.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3389#comment:13>
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