[GHC] #15036: STG Linter dies when linting primitive

[GHC]

#15036: STG Linter dies when linting primitive
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           Reporter:  andrewthad     |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.1
          Component:  Compiler       |           Version:  8.4.1
           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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 Steps to reproduce:

 - Check out the master branch of primitive. Commit hash is currently
 6b49e83fef0126ac09db7acf47f16df43ebce61b.
 - `cabal new-build -w ghc-8.4.1 --ghc-options -dstg-lint`
 - The impossible happened

 Ben, I saw that you had been fixing the stg linter so I'm CCing you in
 case this is related to your work on it.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15036>
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