[benchmark] Add regular (slow) Unmanaged variant
[benchmark] Add regular (slow) Unmanaged variant

gregomni/swift,airspeedswift/swift,parkera/swift,airspeedswift/swift,allevato/swift,glessard/swift,xwu/swift,xwu/swift,allevato/swift,ahoppen/swift,harlanhaskins/swift,rudkx/swift,benlangmuir/swift,tkremenek/swift,apple/swift,airspeedswift/swift,parkera/swift,jmgc/swift,airspeedswift/swift,apple/swift,ahoppen/swift,glessard/swift,parkera/swift,aschwaighofer/swift,airspeedswift/swift,xwu/swift,parkera/swift,apple/swift,hooman/swift,gregomni/swift,JGiola/swift,jckarter/swift,gregomni/swift,allevato/swift,jckarter/swift,rudkx/swift,jmgc/swift,atrick/swift,ahoppen/swift,tkremenek/swift,stephentyrone/swift,xwu/swift,roambotics/swift,harlanhaskins/swift,nathawes/swift,CodaFi/swift,stephentyrone/swift,benlangmuir/swift,hooman/swift,harlanhaskins/swift,stephentyrone/swift,stephentyrone/swift,gregomni/swift,parkera/swift,CodaFi/swift,allevato/swift,CodaFi/swift,JGiola/swift,glessard/swift,jmgc/swift,apple/swift,aschwaighofer/swift,JGiola/swift,harlanhaskins/swift,tkremenek/swift,harlanhaskins/swift,hooman/swift,nathawes/swift,tkremenek/swift,atrick/swift,ahoppen/swift,jmgc/swift,roambotics/swift,nathawes/swift,benlangmuir/swift,glessard/swift,ahoppen/swift,gregomni/swift,roambotics/swift,xwu/swift,aschwaighofer/swift,jckarter/swift,allevato/swift,aschwaighofer/swift,parkera/swift,CodaFi/swift,airspeedswift/swift,rudkx/swift,benlangmuir/swift,atrick/swift,benlangmuir/swift,stephentyrone/swift,JGiola/swift,allevato/swift,gregomni/swift,nathawes/swift,jckarter/swift,ahoppen/swift,atrick/swift,xwu/swift,aschwaighofer/swift,atrick/swift,tkremenek/swift,CodaFi/swift,jckarter/swift,rudkx/swift,roambotics/swift,CodaFi/swift,tkremenek/swift,stephentyrone/swift,jckarter/swift,harlanhaskins/swift,allevato/swift,rudkx/swift,aschwaighofer/swift,jmgc/swift,stephentyrone/swift,hooman/swift,JGiola/swift,nathawes/swift,harlanhaskins/swift,jckarter/swift,parkera/swift,apple/swift,rudkx/swift,parkera/swift,hooman/swift,airspeedswift/swift,aschwaighofer/swift,jmgc/swift,benlangmuir/swift,CodaFi/swift,glessard/swift,nathawes/swift,JGiola/swift,roambotics/swift,tkremenek/swift,apple/swift,roambotics/swift,jmgc/swift,atrick/swift,nathawes/swift,hooman/swift,glessard/swift,hooman/swift,xwu/swift