[GHC] #13588: Simplify StgCase when all alternatives are the case binder

[GHC]

#13588: Simplify StgCase when all alternatives are the case binder
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        Reporter:  nomeata           |                Owner:  (none)
            Type:  task              |               Status:  closed
        Priority:  low               |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3467
       Wiki Page:                    |
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Changes (by nomeata):

 * status:  patch => closed
 * resolution:   => fixed


Comment:

 Harbormaster is happy with this commit, so I pushed it. I will report any
 perf findings once they are in (but I do not expect any).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13588#comment:3>
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