[benchmark] Extract setup in Dictionary(OfObjects)
[benchmark] Extract setup in Dictionary(OfObjects)

Dictionary had setup overhad of 136 μs (6%).
DictionaryOfObjects had setup overhead of 616 μs (7%).
Also fixed variable naming convention (lowerCameCase).

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