[GHC] #7015: Add support for 'static'

[GHC]

#7015: Add support for 'static'
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              Reporter:  edsko       |            Owner:
                  Type:  feature     |           Status:  patch
  request                            |        Milestone:  7.10.1
              Priority:  normal      |          Version:  7.4.2
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D119   |
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Comment (by mboes):

 Indeed. In fact a recent issue was reported by Nick Smallbone against the
 released version of `rank1dynamic`, whereby using a custom `MyAny`-like
 datatype is causing problems, and the proposed fix is again to use
 `GHC.Exts.Any`:

 https://github.com/haskell-distributed/rank1dynamic/pull/7

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7015#comment:25>
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