[GHC] #15981: Implement the Linear Types proposal

[GHC]

#15981: Implement the Linear Types proposal
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           Reporter:  aspiwack       |             Owner:  (none)
               Type:  task           |            Status:  new
           Priority:  normal         |         Milestone:  8.9
          Component:  Compiler       |           Version:
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 This ticket tracks the implementation of the [https://github.com/ghc-
 proposals/ghc-proposals/pull/111 linear types proposal].

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15981>
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