[GHC] #14880: GHC panic: updateRole

[GHC]

#14880: GHC panic: updateRole
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  goldfire
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.2
       Component:  Compiler (Type    |              Version:  8.2.2
  checker)                           |
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:  15592
 Related Tickets:  #15076            |  Differential Rev(s):  Phab:D4769,
                                     |  Phab:D5141, Phab:D5147, Phab:D5150,
       Wiki Page:                    |  Phab:D5208
-------------------------------------+-------------------------------------

Comment (by simonpj):

 OK good.  We are done with Step 2.  Now we just need Richard's patch,
 Phab:D5208.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14880#comment:154>
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