[GHC] #12586: Add types warning to Foreign.C.Types

[GHC]

#12586: Add types warning to Foreign.C.Types
-------------------------------------+-------------------------------------
        Reporter:  Phyx-             |                Owner:  Phyx-
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  libraries/base    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Documentation     |  Unknown/Multiple
  bug                                |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2523
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by Phyx-):

 * status:  new => patch
 * differential:   => Phab:D2523


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12586#comment:2>
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