The patch for FreeBSD headers

[Ivan A. Kosarev]

Hello Richard,

As of today, the issue with system definitions on FreeBSD 9.2 in 32-bit 
mode addressed by this diff:

http://reviews.llvm.org/D4623

is the only one that prevent us from enabling running (and passing) 
32-bit tests on the FreeBSD sanitizers buildbot.

Can you please let me know if there is any decision about this patch? Do 
you think we should keep the tests disabled or apply the diff locally or 
it could be altered somehow to be more acceptable?

Thank you.

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