[GHC] #8114: STG lint panic (was: GHC panic when building `thyme`)

[GHC]

#8114: STG lint panic
-------------------------------------+-------------------------------------
              Reporter:  Ptharien's  |            Owner:
  Flame                              |           Status:  new
                  Type:  bug         |        Milestone:
              Priority:  normal      |          Version:  7.6.3
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  Compile-    |  Related Tickets:  #5345
  time crash                         |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * os:  MacOS X => Unknown/Multiple
 * architecture:  x86_64 (amd64) => Unknown/Multiple
 * related:   => #5345


Comment:

 Confirmed on Linux with ghc-7.9.20141115 using example from comment:1.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8114#comment:5>
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