[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 simonpj):

 Replying to [comment:12 ezyang]:
 > The widespread use of GHC.Prim is primarily an accident induced by
 documentation: https://hackage.haskell.org/package/base-4.9.0.0/docs/GHC-
 Exts.html does not list all of the GHC.Prim functions; instead there's
 just a little "module GHC.Prim" deep inside. So if I'm looking up a
 function, the only Haddock page it is going to be on is GHC.Prim, and then
 of course I'm going to import GHC.Prim (if I am not paying close
 attention).

 Indeed, our intent was that people should import `GHC.Exts` precisely to
 insulate them from the vaguaries of which module actually defines the
 thing.

 While that horse seems to have well and truly bolted, I wonder whether we
 could fix Haddock (or something) for the future, explain the intent, and
 encourage library authors to future-proof their code by updating their
 imports?

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10886#comment:13>
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