[GHC] #15067: When Typeable and unboxed sums collide, GHC panics

[GHC]

#15067: When Typeable and unboxed sums collide, GHC panics
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler (Type    |              Version:  8.4.1
  checker)                           |             Keywords:  Typeable,
      Resolution:                    |  UnboxedSums
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13276            |  Differential Rev(s):  Phab:D4622,
       Wiki Page:                    |  Phab:D4623
-------------------------------------+-------------------------------------
Changes (by bgamari):

 * status:  new => patch
 * differential:   => Phab:D4622, Phab:D4623


Comment:

 Whoops!

 See Phab:D4622 and Phab:D4623.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15067#comment:3>
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