Add a few tests for UnsafeMutablePointer => UnsafePointer conversions
Add a few tests for UnsafeMutablePointer => UnsafePointer conversions

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