[GHC] #15535: Expose the StableName constructor

[GHC]

#15535: Expose the StableName constructor
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        Reporter:  dfeuer            |                Owner:  (none)
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Core Libraries    |              Version:  8.4.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5078
       Wiki Page:                    |
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Comment (by David Feuer <David.Feuer@…>):

 In [changeset:"9c4e6c6b1affd410604f8f76ecf56abfcc5cccb6/ghc" 9c4e6c6/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="9c4e6c6b1affd410604f8f76ecf56abfcc5cccb6"
 Expose the StableName constructor

 * Move the definition of `StableName` from `System.Mem.StableName`
   to a new `GHC.StableName` module.

 * Expose the `StableName` data constructor from `GHC.StableName`.
   Once we have `UnliftedArray#`, this will enable `StableName`s to
   be stored in `UnliftedArray`s (from `primitive`) without unsafe
   coercions.

 Reviewers: hvr, bgamari, andrewthad, osa1

 Reviewed By: osa1

 Subscribers: osa1, rwbarton, carter

 GHC Trac Issues: #15535

 Differential Revision: https://phabricator.haskell.org/D5078
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15535#comment:4>
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