[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 awson):

 Well, things are absolutely OK with `-split-sections` for 64-bit PECOFF
 obj files, but there exist a critical problem for the 32-bit case.

 The problem is that to realistically work with `-split-sections` (even to
 build `GHC` itself, particularly `template-haskell` package, particularly
 `Language.Haskell.TH.Syntax` module compiled in profiling mode) we need
 `big-obj` support (to have more than 32K sections per object file), but
 `binutils` '''has no''' `big-obj` support for 32-bit PECOFF object files.

 Perhaps, the simplest solution would be to have another splitter, which
 would split the whole assembly to chunks with no more than 32K sections in
 each.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11445#comment:11>
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