[GHC] #2915: Arity is smaller than need be

[GHC]

#2915: Arity is smaller than need be
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        Reporter:  simonpj                  |            Owner:  simonpj
            Type:  bug                      |           Status:  closed
        Priority:  lowest                   |        Milestone:  7.6.2
       Component:  Compiler                 |          Version:  6.10.1
      Resolution:  fixed                    |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  Runtime performance bug  |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by Joachim Breitner <mail@…>):

 In [changeset:"2931d19e90d2366f2ce308d65a36333336ca6059/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="2931d19e90d2366f2ce308d65a36333336ca6059"
 More liberally eta-expand a case-expression

 at least with -fno-pedantic-bottoms. This fixes #2915, and undoes some
 of a522c3b, on the grounds that with a flag `-fpedantic-bottoms`
 around, we can be a bit more liberal when the flag is off..
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2915#comment:14>
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