[GHC] #11445: Turn on SplitSections by default

[GHC]

#11445: Turn on SplitSections by default
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        Reporter:  ezyang            |                Owner:
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Build System      |              Version:  8.0.1-rc1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:  11285
 Related Tickets:                    |  Differential Rev(s):  Phab:D1800
       Wiki Page:                    |
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Comment (by thomie):

 Removing `-split-objs` also solves the following tickets:
 * #11315
 * #8964

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11445#comment:7>
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