Fix an overspecific lit check: unsafebufferpointer.swift.
Fix an overspecific lit check: unsafebufferpointer.swift.

<rdar://problem/48016982> TEST 'Swift(iphonesimulator-i386) :: SILOptimizer/unsafebufferpointer.swift' FAILED

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