Re-add Swift 3 mangling test case
Re-add Swift 3 mangling test case

hooman/swift,apple/swift,CodaFi/swift,devincoughlin/swift,glessard/swift,practicalswift/swift,ahoppen/swift,nathawes/swift,JGiola/swift,airspeedswift/swift,shajrawi/swift,sschiau/swift,hooman/swift,gribozavr/swift,lorentey/swift,JGiola/swift,harlanhaskins/swift,danielmartin/swift,JGiola/swift,xedin/swift,parkera/swift,airspeedswift/swift,rudkx/swift,benlangmuir/swift,brentdax/swift,xwu/swift,alblue/swift,shahmishal/swift,apple/swift,CodaFi/swift,lorentey/swift,austinzheng/swift,sschiau/swift,xedin/swift,practicalswift/swift,jmgc/swift,danielmartin/swift,karwa/swift,jopamer/swift,benlangmuir/swift,karwa/swift,jopamer/swift,roambotics/swift,jmgc/swift,airspeedswift/swift,gregomni/swift,tkremenek/swift,harlanhaskins/swift,brentdax/swift,stephentyrone/swift,amraboelela/swift,shahmishal/swift,practicalswift/swift,parkera/swift,ahoppen/swift,danielmartin/swift,parkera/swift,gregomni/swift,shahmishal/swift,apple/swift,sschiau/swift,glessard/swift,stephentyrone/swift,austinzheng/swift,alblue/swift,allevato/swift,roambotics/swift,xedin/swift,CodaFi/swift,glessard/swift,CodaFi/swift,practicalswift/swift,amraboelela/swift,xwu/swift,parkera/swift,rudkx/swift,airspeedswift/swift,aschwaighofer/swift,aschwaighofer/swift,jckarter/swift,hooman/swift,CodaFi/swift,practicalswift/swift,brentdax/swift,jmgc/swift,apple/swift,roambotics/swift,benlangmuir/swift,tkremenek/swift,atrick/swift,ahoppen/swift,danielmartin/swift,parkera/swift,alblue/swift,roambotics/swift,jckarter/swift,nathawes/swift,lorentey/swift,roambotics/swift,xedin/swift,nathawes/swift,shajrawi/swift,gribozavr/swift,hooman/swift,xedin/swift,airspeedswift/swift,gregomni/swift,aschwaighofer/swift,allevato/swift,shahmishal/swift,tkremenek/swift,jckarter/swift,jmgc/swift,lorentey/swift,shahmishal/swift,harlanhaskins/swift,CodaFi/swift,devincoughlin/swift,airspeedswift/swift,brentdax/swift,hooman/swift,practicalswift/swift,jopamer/swift,aschwaighofer/swift,natecook1000/swift,shajrawi/swift,parkera/swift,allevato/swift,xwu/swift,gribozavr/swift,stephentyrone/swift,austinzheng/swift,jopamer/swift,tkremenek/swift,gribozavr/swift,jckarter/swift,JGiola/swift,jmgc/swift,ahoppen/swift,parkera/swift,benlangmuir/swift,sschiau/swift,alblue/swift,shajrawi/swift,lorentey/swift,rudkx/swift,gribozavr/swift,xedin/swift,gregomni/swift,rudkx/swift,devincoughlin/swift,glessard/swift,atrick/swift,devincoughlin/swift,jopamer/swift,danielmartin/swift,sschiau/swift,sschiau/swift,natecook1000/swift,shajrawi/swift,karwa/swift,amraboelela/swift,karwa/swift,stephentyrone/swift,gribozavr/swift,practicalswift/swift,xedin/swift,harlanhaskins/swift,atrick/swift,gribozavr/swift,natecook1000/swift,apple/swift,allevato/swift,rudkx/swift,harlanhaskins/swift,airspeedswift/swift,xwu/swift,jmgc/swift,jckarter/swift,gribozavr/swift,amraboelela/swift,gregomni/swift,nathawes/swift,ahoppen/swift,jopamer/swift,shajrawi/swift,xwu/swift,atrick/swift,karwa/swift,gregomni/swift,parkera/swift,tkremenek/swift,roambotics/swift,JGiola/swift,austinzheng/swift,amraboelela/swift,atrick/swift,jckarter/swift,brentdax/swift,xwu/swift,shahmishal/swift,atrick/swift,allevato/swift,benlangmuir/swift,natecook1000/swift,natecook1000/swift,stephentyrone/swift,natecook1000/swift,shahmishal/swift,tkremenek/swift,devincoughlin/swift,shajrawi/swift,glessard/swift,austinzheng/swift,apple/swift,allevato/swift,alblue/swift,nathawes/swift,brentdax/swift,amraboelela/swift,hooman/swift,harlanhaskins/swift,shahmishal/swift,nathawes/swift,aschwaighofer/swift,austinzheng/swift,rudkx/swift,danielmartin/swift,jopamer/swift,ahoppen/swift,brentdax/swift,glessard/swift,alblue/swift,amraboelela/swift,hooman/swift,natecook1000/swift,sschiau/swift,jckarter/swift,allevato/swift,xedin/swift,karwa/swift,aschwaighofer/swift,tkremenek/swift,sschiau/swift,lorentey/swift,danielmartin/swift,devincoughlin/swift,stephentyrone/swift,lorentey/swift,CodaFi/swift,devincoughlin/swift,stephentyrone/swift,austinzheng/swift,karwa/swift,alblue/swift,lorentey/swift,aschwaighofer/swift,devincoughlin/swift,nathawes/swift,jmgc/swift,shajrawi/swift,harlanhaskins/swift,practicalswift/swift,xwu/swift,karwa/swift,benlangmuir/swift,JGiola/swift