[GHC] #13203: Implement Bits Natural clearBit

[GHC]

#13203: Implement Bits Natural clearBit
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        Reporter:  dylex             |                Owner:  supersven
            Type:  bug               |               Status:  merge
        Priority:  high              |            Milestone:  8.2.2
       Component:  libraries/base    |              Version:  7.10.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 An implementation of `clearBit` for `Natural` has been merged to `ghc-8.2`
 with 3de07dcf221548e73c3623a085cae99d0b519c8b.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13203#comment:10>
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