[GHC] #7478: setSessionDynFlags does not always work

[GHC]

#7478: setSessionDynFlags does not always work
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        Reporter:  edsko             |                   Owner:  bherzog
            Type:  bug               |                  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:  ghc-
 Related Tickets:                    |  api/T7478
                                     |                Blocking:
                                     |  Differential Revisions:  Phab:D1017
-------------------------------------+-------------------------------------
Changes (by bherzog):

 * differential:   => Phab:D1017


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7478#comment:20>
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