SIL serialization: add PrettyStackTraces (#13289)
SIL serialization: add PrettyStackTraces (#13289)

...to help in debugging things like SR-6522.
roambotics/swift,sschiau/swift,lorentey/swift,harlanhaskins/swift,glessard/swift,atrick/swift,frootloops/swift,devincoughlin/swift,allevato/swift,harlanhaskins/swift,airspeedswift/swift,roambotics/swift,gribozavr/swift,brentdax/swift,roambotics/swift,devincoughlin/swift,allevato/swift,brentdax/swift,aschwaighofer/swift,atrick/swift,amraboelela/swift,benlangmuir/swift,stephentyrone/swift,amraboelela/swift,xwu/swift,hooman/swift,jmgc/swift,practicalswift/swift,atrick/swift,huonw/swift,tjw/swift,jckarter/swift,stephentyrone/swift,tjw/swift,xedin/swift,parkera/swift,alblue/swift,shahmishal/swift,aschwaighofer/swift,devincoughlin/swift,jmgc/swift,tkremenek/swift,nathawes/swift,glessard/swift,austinzheng/swift,karwa/swift,alblue/swift,austinzheng/swift,xedin/swift,practicalswift/swift,shahmishal/swift,ahoppen/swift,nathawes/swift,CodaFi/swift,roambotics/swift,amraboelela/swift,danielmartin/swift,hooman/swift,stephentyrone/swift,parkera/swift,amraboelela/swift,xedin/swift,lorentey/swift,natecook1000/swift,practicalswift/swift,amraboelela/swift,apple/swift,harlanhaskins/swift,natecook1000/swift,austinzheng/swift,tjw/swift,karwa/swift,natecook1000/swift,gribozavr/swift,roambotics/swift,benlangmuir/swift,shahmishal/swift,JGiola/swift,rudkx/swift,ahoppen/swift,tkremenek/swift,ahoppen/swift,austinzheng/swift,JGiola/swift,ahoppen/swift,JGiola/swift,allevato/swift,parkera/swift,parkera/swift,jckarter/swift,danielmartin/swift,harlanhaskins/swift,danielmartin/swift,huonw/swift,lorentey/swift,hooman/swift,stephentyrone/swift,shajrawi/swift,xwu/swift,xedin/swift,natecook1000/swift,sschiau/swift,CodaFi/swift,zisko/swift,nathawes/swift,nathawes/swift,airspeedswift/swift,huonw/swift,zisko/swift,rudkx/swift,practicalswift/swift,frootloops/swift,harlanhaskins/swift,allevato/swift,jmgc/swift,benlangmuir/swift,aschwaighofer/swift,brentdax/swift,danielmartin/swift,apple/swift,roambotics/swift,airspeedswift/swift,danielmartin/swift,huonw/swift,atrick/swift,practicalswift/swift,CodaFi/swift,devincoughlin/swift,danielmartin/swift,nathawes/swift,devincoughlin/swift,alblue/swift,gribozavr/swift,airspeedswift/swift,JGiola/swift,rudkx/swift,shahmishal/swift,sschiau/swift,alblue/swift,karwa/swift,jckarter/swift,natecook1000/swift,apple/swift,danielmartin/swift,jopamer/swift,gribozavr/swift,practicalswift/swift,practicalswift/swift,karwa/swift,airspeedswift/swift,parkera/swift,karwa/swift,CodaFi/swift,xwu/swift,benlangmuir/swift,JGiola/swift,nathawes/swift,austinzheng/swift,devincoughlin/swift,harlanhaskins/swift,apple/swift,shahmishal/swift,huonw/swift,apple/swift,airspeedswift/swift,frootloops/swift,parkera/swift,devincoughlin/swift,gribozavr/swift,austinzheng/swift,rudkx/swift,allevato/swift,huonw/swift,jopamer/swift,stephentyrone/swift,CodaFi/swift,tkremenek/swift,natecook1000/swift,frootloops/swift,parkera/swift,benlangmuir/swift,shahmishal/swift,gregomni/swift,shajrawi/swift,atrick/swift,shajrawi/swift,JGiola/swift,jopamer/swift,alblue/swift,natecook1000/swift,hooman/swift,xedin/swift,gribozavr/swift,amraboelela/swift,hooman/swift,xedin/swift,glessard/swift,rudkx/swift,xwu/swift,alblue/swift,aschwaighofer/swift,lorentey/swift,glessard/swift,tjw/swift,tkremenek/swift,tjw/swift,shajrawi/swift,jckarter/swift,glessard/swift,tkremenek/swift,huonw/swift,allevato/swift,jmgc/swift,brentdax/swift,gribozavr/swift,sschiau/swift,frootloops/swift,jmgc/swift,karwa/swift,sschiau/swift,benlangmuir/swift,xwu/swift,shajrawi/swift,gregomni/swift,airspeedswift/swift,jopamer/swift,shahmishal/swift,karwa/swift,austinzheng/swift,devincoughlin/swift,practicalswift/swift,gribozavr/swift,karwa/swift,aschwaighofer/swift,gregomni/swift,jckarter/swift,zisko/swift,lorentey/swift,harlanhaskins/swift,xwu/swift,lorentey/swift,brentdax/swift,CodaFi/swift,tjw/swift,jmgc/swift,gregomni/swift,ahoppen/swift,lorentey/swift,stephentyrone/swift,zisko/swift,atrick/swift,tkremenek/swift,hooman/swift,parkera/swift,tjw/swift,ahoppen/swift,sschiau/swift,glessard/swift,gregomni/swift,CodaFi/swift,xedin/swift,tkremenek/swift,xwu/swift,nathawes/swift,shajrawi/swift,hooman/swift,sschiau/swift,zisko/swift,sschiau/swift,jopamer/swift,brentdax/swift,jmgc/swift,rudkx/swift,allevato/swift,jopamer/swift,zisko/swift,shajrawi/swift,jckarter/swift,xedin/swift,frootloops/swift,shajrawi/swift,frootloops/swift,lorentey/swift,brentdax/swift,zisko/swift,jckarter/swift,gregomni/swift,alblue/swift,amraboelela/swift,apple/swift,aschwaighofer/swift,aschwaighofer/swift,shahmishal/swift,jopamer/swift,stephentyrone/swift