Revert D998590
Revert D998590

Summary:
- It looks like Xcode 5.0.2 / clang 500.2.79 changed this behavior. The
prior behavior was seen against Xcode 5.0.1 / clang 500.2.75. Blerg.
If we really have to support different Xcode flavors we can come up
with a real solution for this, but for now just take advantage of the
fact that clang and gcc seem to agree on this.

Test Plan: - make check on Mac OS X

Reviewed By: andrei.alexandrescu@fb.com

FB internal diff: D1066272

Blame Revision: D998590

cppfool/folly,clearlylin/folly,KSreeHarsha/folly,CJstar/folly,bobegir/folly,loversInJapan/folly,Hincoin/folly,renyinew/folly,arg0/folly,cppfool/folly,hongliangzhao/folly,guker/folly,doctaweeks/folly,gavioto/folly,CJstar/folly,SeanRBurton/folly,arg0/folly,Orvid/folly,loversInJapan/folly,tomhughes/folly,renyinew/folly,CJstar/folly,gaoyingie/folly,bsampath/folly,fw1121/folly,tempbottle/folly,unmeshvrije/C--,wildinto/folly,theiver9827/folly,chjp2046/folly,constantine001/folly,clearlinux/folly,charsyam/folly,lifei/folly,lifei/folly,cole14/folly,PPC64/folly,reddit/folly,Hincoin/folly,sakishum/folly,stonegithubs/folly,ykarlsbrun/folly,kernelim/folly,gaoyingie/folly,nickhen/folly,Eagle-X/folly,guker/folly,bobegir/folly,PoisonBOx/folly,cppfool/folly,cole14/folly,lifei/folly,sakishum/folly,clearlylin/folly,rklabs/folly,yangjin-unique/folly,loverszhaokai/folly,SeanRBurton/folly,bobegir/folly,SeanRBurton/folly,zhiweicai/folly,facebook/folly,renyinew/folly,colemancda/folly,KSreeHarsha/folly,stonegithubs/folly,yangjin-unique/folly,sakishum/folly,sakishum/folly,Eagle-X/folly,cppfool/folly,leolujuyi/folly,mqeizi/folly,clearlinux/folly,xzmagic/folly,hongliangzhao/folly,brunomorishita/folly,KSreeHarsha/folly,KSreeHarsha/folly,alexst07/folly,loversInJapan/folly,upsoft/folly,wildinto/folly,SammyK/folly,kernelim/folly,bowlofstew/folly,sakishum/folly,colemancda/folly,raphaelamorim/folly,hongliangzhao/folly,sonnyhu/folly,floxard/folly,tomhughes/folly,Eagle-X/folly,PoisonBOx/folly,gavioto/folly,zhiweicai/folly,raphaelamorim/folly,romange/folly,gaoyingie/folly,zhiweicai/folly,tempbottle/folly,SammyK/folly,nickhen/folly,colemancda/folly,leolujuyi/folly,gavioto/folly,clearlinux/folly,floxard/folly,romange/folly,rklabs/folly,tempbottle/folly,kernelim/folly,reddit/folly,bobegir/folly,alexst07/folly,arg0/folly,theiver9827/folly,CJstar/folly,SammyK/folly,constantine001/folly,bowlofstew/folly,PPC64/folly,leolujuyi/folly,SeanRBurton/folly,shaobz/folly,unmeshvrije/C--,alexst07/folly,chjp2046/folly,Hincoin/folly,PoisonBOx/folly,floxard/folly,juniway/folly,fw1121/folly,leolujuyi/folly,bikong2/folly,kernelim/folly,bikong2/folly,Hincoin/folly,reddit/folly,Orvid/folly,fw1121/folly,rklabs/folly,mqeizi/folly,PoisonBOx/folly,gavioto/folly,bikong2/folly,arg0/folly,rklabs/folly,nickhen/folly,colemancda/folly,loverszhaokai/folly,upsoft/folly,hongliangzhao/folly,bowlofstew/folly,facebook/folly,renyinew/folly,wildinto/folly,juniway/folly,bsampath/folly,guker/folly,cole14/folly,SammyK/folly,loverszhaokai/folly,cole14/folly,cole14/folly,mqeizi/folly,reddit/folly,project-zerus/folly,tomhughes/folly,nickhen/folly,clearlylin/folly,Orvid/folly,charsyam/folly,guker/folly,CJstar/folly,bsampath/folly,sonnyhu/folly,xzmagic/folly,gaoyingie/folly,facebook/folly,raphaelamorim/folly,zhiweicai/folly,facebook/folly,loverszhaokai/folly,brunomorishita/folly,raphaelamorim/folly,stonegithubs/folly,gavioto/folly,cppfool/folly,ykarlsbrun/folly,yangjin-unique/folly,bowlofstew/folly,loversInJapan/folly,charsyam/folly,gaoyingie/folly,doctaweeks/folly,facebook/folly,shaobz/folly,project-zerus/folly,fw1121/folly,stonegithubs/folly,Eagle-X/folly,upsoft/folly,constantine001/folly,PPC64/folly,project-zerus/folly,unmeshvrije/C--,sonnyhu/folly,nickhen/folly,romange/folly,reddit/folly,stonegithubs/folly,shaobz/folly,wildinto/folly,SammyK/folly,mqeizi/folly,brunomorishita/folly,floxard/folly,bsampath/folly,bikong2/folly,colemancda/folly,theiver9827/folly,upsoft/folly,ykarlsbrun/folly,renyinew/folly,constantine001/folly,mqeizi/folly,clearlylin/folly,bikong2/folly,hongliangzhao/folly,arg0/folly,tempbottle/folly,theiver9827/folly,doctaweeks/folly,theiver9827/folly,loversInJapan/folly,sonnyhu/folly,romange/folly,clearlinux/folly,Hincoin/folly,kernelim/folly,project-zerus/folly,zhiweicai/folly,chjp2046/folly,SeanRBurton/folly,brunomorishita/folly,tomhughes/folly,sonnyhu/folly,KSreeHarsha/folly,clearlylin/folly,xzmagic/folly,fw1121/folly,PoisonBOx/folly,shaobz/folly,ykarlsbrun/folly,wildinto/folly,leolujuyi/folly,Orvid/folly,PPC64/folly,alexst07/folly,floxard/folly,juniway/folly,constantine001/folly,doctaweeks/folly,lifei/folly,Orvid/folly,ykarlsbrun/folly,project-zerus/folly,raphaelamorim/folly,tomhughes/folly,unmeshvrije/C--,guker/folly,xzmagic/folly,upsoft/folly,unmeshvrije/C--,brunomorishita/folly,tempbottle/folly,unmeshvrije/C--,bowlofstew/folly,xzmagic/folly,chjp2046/folly,shaobz/folly,charsyam/folly,loverszhaokai/folly,bsampath/folly,yangjin-unique/folly,chjp2046/folly,alexst07/folly,doctaweeks/folly,clearlinux/folly,juniway/folly,rklabs/folly,juniway/folly,bobegir/folly,romange/folly,lifei/folly,yangjin-unique/folly,PPC64/folly,Eagle-X/folly