fast/text/international/hindi-spacing.html and transforms/2d/hindi-rotated.html are flaky on Yosemite
https://bugs.webkit.org/show_bug.cgi?id=138075

This was fixed via bug 138683, a fix for another text rendering test being flaky.

* platform/mac/TestExpectations: Remove the expectations.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@177752 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Build fix.

Removed use of __builtin_s{add,sub}_overflow introduced in r177729 that was causing a compiler used at Apple to crash because of <rdar://problem/19347133>.

* wtf/SaturatedArithmetic.h:
(signedAddOverflows):
(signedSubtractOverflows):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@177753 268f45cc-cd09-0410-ab3c-d52691b4dbfc