[GHC] #13227: Loss of full laziness in mapFB

[GHC]

#13227: Loss of full laziness in mapFB
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        Reporter:  simonpj           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Joachim Breitner <mail@…>):

 In [changeset:"d8ac64e782b8543e5a525c7bb738620bd09aa398/ghc" d8ac64e/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="d8ac64e782b8543e5a525c7bb738620bd09aa398"
 Add a testcase for #13227

 where an expected float-out is not happening.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13227#comment:4>
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