[GHC] #8114: STG lint panic

[GHC]

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

 Apart from the STG lint issue (which I really can't comment on), it's not
 clear to me why `text` is using `unsafeCoerce#` here instead of
 `unfreezeByteArray#`, which seems to pre-date `Data.Text.Array`.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8114#comment:6>
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