[GHC] #15301: Regression in Natural desugaring

[GHC]

#15301: Regression in Natural desugaring
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           Reporter:  hsyl20         |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  highest        |         Milestone:  8.6.1
          Component:  Compiler       |           Version:  8.4.3
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Incorrect result
  Unknown/Multiple                   |  at runtime
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 My recent merged patch "Built-in Natural literals in Core"
 https://phabricator.haskell.org/rGHCfe770c211631e7b4c9b0b1e88ef9b6046c6585ef
 introduced a regression when desugaring large numbers.

 Patch coming.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15301>
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