Add MaxString<__uint128_t>
Add MaxString<__uint128_t>

Summary: For GCC 3.6+, define a template specialization for MaxString<__uint128_t>.

@override-unit-failures

Test Plan: Unit tests

Reviewed By: andrei.alexandrescu@fb.com

FB internal diff: D995290


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