[AST] explicit PrintOptions default constructor (#18142)
[AST] explicit PrintOptions default constructor (#18142)

For use in LLDB.
hooman/swift,devincoughlin/swift,atrick/swift,ahoppen/swift,parkera/swift,aschwaighofer/swift,parkera/swift,tkremenek/swift,xedin/swift,airspeedswift/swift,atrick/swift,benlangmuir/swift,jmgc/swift,stephentyrone/swift,stephentyrone/swift,ahoppen/swift,hooman/swift,ahoppen/swift,rudkx/swift,lorentey/swift,jmgc/swift,alblue/swift,austinzheng/swift,amraboelela/swift,amraboelela/swift,practicalswift/swift,xwu/swift,jckarter/swift,sschiau/swift,tkremenek/swift,rudkx/swift,apple/swift,shahmishal/swift,JGiola/swift,amraboelela/swift,nathawes/swift,glessard/swift,xedin/swift,xwu/swift,jckarter/swift,shajrawi/swift,harlanhaskins/swift,brentdax/swift,brentdax/swift,lorentey/swift,brentdax/swift,aschwaighofer/swift,jmgc/swift,stephentyrone/swift,airspeedswift/swift,nathawes/swift,aschwaighofer/swift,lorentey/swift,stephentyrone/swift,gribozavr/swift,JGiola/swift,brentdax/swift,benlangmuir/swift,jmgc/swift,benlangmuir/swift,roambotics/swift,devincoughlin/swift,karwa/swift,CodaFi/swift,hooman/swift,tkremenek/swift,aschwaighofer/swift,sschiau/swift,xedin/swift,jckarter/swift,jmgc/swift,harlanhaskins/swift,airspeedswift/swift,austinzheng/swift,tkremenek/swift,stephentyrone/swift,roambotics/swift,karwa/swift,natecook1000/swift,harlanhaskins/swift,gregomni/swift,aschwaighofer/swift,sschiau/swift,alblue/swift,roambotics/swift,JGiola/swift,parkera/swift,natecook1000/swift,xedin/swift,danielmartin/swift,allevato/swift,karwa/swift,karwa/swift,airspeedswift/swift,practicalswift/swift,CodaFi/swift,apple/swift,devincoughlin/swift,jckarter/swift,hooman/swift,lorentey/swift,jckarter/swift,airspeedswift/swift,rudkx/swift,karwa/swift,harlanhaskins/swift,apple/swift,xedin/swift,xwu/swift,danielmartin/swift,harlanhaskins/swift,CodaFi/swift,apple/swift,lorentey/swift,parkera/swift,devincoughlin/swift,parkera/swift,nathawes/swift,tkremenek/swift,JGiola/swift,shahmishal/swift,brentdax/swift,gribozavr/swift,aschwaighofer/swift,glessard/swift,natecook1000/swift,alblue/swift,airspeedswift/swift,shajrawi/swift,austinzheng/swift,atrick/swift,nathawes/swift,rudkx/swift,allevato/swift,benlangmuir/swift,allevato/swift,gribozavr/swift,shahmishal/swift,gregomni/swift,shahmishal/swift,xedin/swift,nathawes/swift,CodaFi/swift,xwu/swift,apple/swift,alblue/swift,danielmartin/swift,sschiau/swift,sschiau/swift,practicalswift/swift,alblue/swift,gregomni/swift,xedin/swift,karwa/swift,sschiau/swift,hooman/swift,tkremenek/swift,harlanhaskins/swift,lorentey/swift,ahoppen/swift,allevato/swift,natecook1000/swift,gribozavr/swift,shahmishal/swift,danielmartin/swift,benlangmuir/swift,natecook1000/swift,airspeedswift/swift,practicalswift/swift,nathawes/swift,hooman/swift,xwu/swift,gribozavr/swift,gribozavr/swift,glessard/swift,xedin/swift,devincoughlin/swift,gribozavr/swift,hooman/swift,harlanhaskins/swift,jckarter/swift,xwu/swift,JGiola/swift,lorentey/swift,shajrawi/swift,devincoughlin/swift,aschwaighofer/swift,CodaFi/swift,devincoughlin/swift,danielmartin/swift,amraboelela/swift,austinzheng/swift,glessard/swift,stephentyrone/swift,amraboelela/swift,shajrawi/swift,danielmartin/swift,shahmishal/swift,amraboelela/swift,tkremenek/swift,natecook1000/swift,shahmishal/swift,roambotics/swift,apple/swift,shahmishal/swift,amraboelela/swift,roambotics/swift,practicalswift/swift,sschiau/swift,karwa/swift,practicalswift/swift,jckarter/swift,roambotics/swift,allevato/swift,rudkx/swift,karwa/swift,atrick/swift,shajrawi/swift,parkera/swift,allevato/swift,gribozavr/swift,practicalswift/swift,austinzheng/swift,parkera/swift,austinzheng/swift,CodaFi/swift,brentdax/swift,xwu/swift,brentdax/swift,glessard/swift,jmgc/swift,lorentey/swift,shajrawi/swift,JGiola/swift,CodaFi/swift,ahoppen/swift,gregomni/swift,austinzheng/swift,natecook1000/swift,stephentyrone/swift,gregomni/swift,danielmartin/swift,allevato/swift,gregomni/swift,devincoughlin/swift,alblue/swift,nathawes/swift,atrick/swift,practicalswift/swift,rudkx/swift,shajrawi/swift,glessard/swift,jmgc/swift,ahoppen/swift,parkera/swift,atrick/swift,shajrawi/swift,benlangmuir/swift,sschiau/swift,alblue/swift