[test] SILOptimizer/string_literals.swift: Mark as unsupported on 32-bit
[test] SILOptimizer/string_literals.swift: Mark as unsupported on 32-bit

We can’t currently constant-fold away the initialization of StringObject’s 7-bit discriminator field, so string literal initialization is a bit more complicated on 32-bit platforms.

rdar://problem/45845142

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