Revert "Don't run ReplacingConstraintsTests on OS X"
Revert "Don't run ReplacingConstraintsTests on OS X"

This reverts commit 20ccd41ed716d62bcdf861b7f1203d1f18ee50f2.

msdgwzhy6/Cartography,alvivi/Cartography,noluyo/Cartography,vinod1988/Cartography,PiersonBro/Cartography,msdgwzhy6/Cartography,cogddo/Cartography,dougbeal/Cartography,seyton/Cartography,jessesquires/Cartography,ppamorim/Cartography,ernestopino/Cartography,tonyli508/Cartography-IOS7,TimothyChilvers/Cartography,kliu/Cartography,iosyoujian/Cartography,dougbeal/Cartography,brunov0id/Cartography,eeschimosu/Cartography,KyoheiG3/Cartography,linchanlau/Cartography,cnbin/Cartography,bzmario/Cartography,ArthurKK/Cartography,tonyli508/Cartography,ernestopino/Cartography,alvivi/Cartography,tonyli508/Cartography,zilaiyedaren/Cartography,gaurav1981/Cartography,gaurav1981/Cartography,ken0nek/Cartography,TimothyChilvers/Cartography,rankun203/Cartography,jessesquires/Cartography,petester42/Cartography,PiersonBro/Cartography,kliu/Cartography,LiuDeng/Cartography,iosyoujian/Cartography,cnbin/Cartography,cogddo/Cartography,petester42/Cartography,vinod1988/Cartography,Khan/Cartography,seyton/Cartography,rankun203/Cartography,fullstackclub/Cartography,ken0nek/Cartography,lixiaohu1990/Cartography,xBrux/Cartography,sai43/Cartography,ppamorim/Cartography,bzmario/Cartography,fullstackclub/Cartography,xBrux/Cartography,sai43/Cartography,noluyo/Cartography,bestwpw/Cartography,LiuDeng/Cartography,bestwpw/Cartography,u10int/Cartography,u10int/Cartography,lixiaohu1990/Cartography,tonyli508/Cartography-IOS7,eeschimosu/Cartography,KyoheiG3/Cartography,zilaiyedaren/Cartography,linchanlau/Cartography,Khan/Cartography,ArthurKK/Cartography,brunov0id/Cartography