[GHC] #7782: flag to run the demand analysis a second time

[GHC]

#7782: flag to run the demand analysis a second time
-------------------------------------+-------------------------------------
        Reporter:  nfrisby           |                   Owner:
            Type:  task              |                  Status:  new
        Priority:  high              |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.7
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:  #4941, #5302,     |                Blocking:
  #6087, #4962                       |  Differential Revisions:
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * owner:  nfrisby =>
 * priority:  normal => high
 * status:  closed => new
 * resolution:  fixed =>
 * milestone:  7.8.1 => 7.12.1


Comment:

 I'm re-opening this because we have not yet enabled `-flate-dmd-anal` by
 default, and I think we should.  But there are caveats on [wike:LateDmd
 the LateDmd wiki page] that need exploring first.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7782#comment:13>
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