[GHC] #10886: Remove the magic from `Any`

[GHC]

#10886: Remove the magic from `Any`
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        Reporter:  goldfire          |                Owner:  goldfire
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  7.10.2
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2049
       Wiki Page:                    |
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Comment (by ezyang):

 According to https://www.haskell.org/haddock/doc/html/ch03s04.html Haddock
 will only inline the documentation if the module is not completely
 reexported, or the module being reexported is marked with the hidden
 attribute. So Haddock DOES support inlining the documentation here; it's a
 matter of changing the default.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10886#comment:14>
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