[GHC] #8590: Reduce code size of CAFs

[GHC]

#8590: Reduce code size of CAFs
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        Reporter:  parcs             |            Owner:  parcs
            Type:  feature request   |           Status:  closed
        Priority:  normal            |        Milestone:
       Component:  Compiler (NCG)    |          Version:  7.7
      Resolution:  fixed             |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by parcs):

 This patch removed the last user of the constructor
 `LambdaFormInfo.LFBlackHole`. A comment in the code alludes to removing
 it, and now it is possible to do so. See
 https://ghc.haskell.org/trac/ghc/browser/ghc/compiler/codeGen/StgCmmClosure.hs#L183

 So, should it be removed now?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8590#comment:13>
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