teach allocbox_to_stack that init_existential and destroy_addr don't inherently keep a stack object alive.  This allows it to remove 50 more stack allocations from the stdlib.
teach allocbox_to_stack that init_existential and destroy_addr don't
inherently keep a stack object alive.  This allows it to remove 50
more stack allocations from the stdlib.


Swift SVN r9307

IngmarStein/swift,IngmarStein/swift,gregomni/swift,alblue/swift,practicalswift/swift,CodaFi/swift,deyton/swift,cbrentharris/swift,kstaring/swift,shajrawi/swift,xwu/swift,parkera/swift,cbrentharris/swift,xedin/swift,airspeedswift/swift,JaSpa/swift,ken0nek/swift,lorentey/swift,IngmarStein/swift,therealbnut/swift,amraboelela/swift,karwa/swift,dduan/swift,hooman/swift,MukeshKumarS/Swift,MukeshKumarS/Swift,kentya6/swift,danielmartin/swift,gottesmm/swift,OscarSwanros/swift,gribozavr/swift,slavapestov/swift,IngmarStein/swift,apple/swift,LeoShimonaka/swift,hooman/swift,tinysun212/swift-windows,Ivacker/swift,jmgc/swift,austinzheng/swift,xedin/swift,swiftix/swift.old,codestergit/swift,adrfer/swift,roambotics/swift,karwa/swift,gottesmm/swift,glessard/swift,gmilos/swift,JGiola/swift,adrfer/swift,sschiau/swift,ben-ng/swift,shahmishal/swift,ahoppen/swift,jtbandes/swift,zisko/swift,modocache/swift,sschiau/swift,xwu/swift,jckarter/swift,aschwaighofer/swift,arvedviehweger/swift,tjw/swift,nathawes/swift,amraboelela/swift,CodaFi/swift,harlanhaskins/swift,practicalswift/swift,swiftix/swift,khizkhiz/swift,adrfer/swift,tardieu/swift,roambotics/swift,gmilos/swift,djwbrown/swift,kperryua/swift,JGiola/swift,jckarter/swift,MukeshKumarS/Swift,Jnosh/swift,khizkhiz/swift,shahmishal/swift,kentya6/swift,hughbe/swift,gmilos/swift,brentdax/swift,hughbe/swift,milseman/swift,hooman/swift,Ivacker/swift,kperryua/swift,parkera/swift,uasys/swift,stephentyrone/swift,shahmishal/swift,therealbnut/swift,sschiau/swift,shajrawi/swift,harlanhaskins/swift,Ivacker/swift,brentdax/swift,djwbrown/swift,gottesmm/swift,lorentey/swift,emilstahl/swift,Jnosh/swift,atrick/swift,jtbandes/swift,gottesmm/swift,natecook1000/swift,cbrentharris/swift,swiftix/swift.old,jopamer/swift,deyton/swift,stephentyrone/swift,nathawes/swift,johnno1962d/swift,huonw/swift,ben-ng/swift,austinzheng/swift,therealbnut/swift,LeoShimonaka/swift,OscarSwanros/swift,parkera/swift,jtbandes/swift,ken0nek/swift,nathawes/swift,slavapestov/swift,frootloops/swift,allevato/swift,Jnosh/swift,tinysun212/swift-windows,karwa/swift,parkera/swift,slavapestov/swift,Jnosh/swift,milseman/swift,karwa/swift,roambotics/swift,gribozavr/swift,SwiftAndroid/swift,frootloops/swift,codestergit/swift,kstaring/swift,harlanhaskins/swift,bitjammer/swift,swiftix/swift.old,ken0nek/swift,natecook1000/swift,return/swift,tardieu/swift,uasys/swift,kstaring/swift,allevato/swift,uasys/swift,SwiftAndroid/swift,karwa/swift,apple/swift,gribozavr/swift,apple/swift,return/swift,swiftix/swift,natecook1000/swift,emilstahl/swift,swiftix/swift,austinzheng/swift,kusl/swift,danielmartin/swift,JaSpa/swift,roambotics/swift,Ivacker/swift,austinzheng/swift,tinysun212/swift-windows,Ivacker/swift,parkera/swift,gribozavr/swift,mightydeveloper/swift,adrfer/swift,SwiftAndroid/swift,frootloops/swift,swiftix/swift,kentya6/swift,huonw/swift,nathawes/swift,LeoShimonaka/swift,djwbrown/swift,emilstahl/swift,JGiola/swift,xwu/swift,therealbnut/swift,ahoppen/swift,frootloops/swift,shajrawi/swift,OscarSwanros/swift,jmgc/swift,shajrawi/swift,bitjammer/swift,amraboelela/swift,sdulal/swift,KrishMunot/swift,deyton/swift,KrishMunot/swift,gregomni/swift,tardieu/swift,LeoShimonaka/swift,ahoppen/swift,mightydeveloper/swift,sschiau/swift,huonw/swift,sdulal/swift,OscarSwanros/swift,MukeshKumarS/Swift,gribozavr/swift,alblue/swift,practicalswift/swift,cbrentharris/swift,dreamsxin/swift,rudkx/swift,xedin/swift,parkera/swift,jmgc/swift,brentdax/swift,arvedviehweger/swift,kperryua/swift,danielmartin/swift,glessard/swift,gmilos/swift,ahoppen/swift,uasys/swift,SwiftAndroid/swift,codestergit/swift,kusl/swift,calebd/swift,practicalswift/swift,alblue/swift,arvedviehweger/swift,swiftix/swift.old,parkera/swift,hughbe/swift,tinysun212/swift-windows,dduan/swift,tkremenek/swift,johnno1962d/swift,hooman/swift,danielmartin/swift,return/swift,OscarSwanros/swift,devincoughlin/swift,hooman/swift,huonw/swift,airspeedswift/swift,atrick/swift,bitjammer/swift,tardieu/swift,ken0nek/swift,kstaring/swift,therealbnut/swift,OscarSwanros/swift,natecook1000/swift,stephentyrone/swift,swiftix/swift.old,JGiola/swift,atrick/swift,brentdax/swift,ben-ng/swift,shajrawi/swift,brentdax/swift,tinysun212/swift-windows,glessard/swift,tkremenek/swift,rudkx/swift,bitjammer/swift,zisko/swift,russbishop/swift,lorentey/swift,CodaFi/swift,swiftix/swift,hooman/swift,rudkx/swift,kstaring/swift,amraboelela/swift,mightydeveloper/swift,Jnosh/swift,swiftix/swift,shahmishal/swift,alblue/swift,KrishMunot/swift,xedin/swift,amraboelela/swift,practicalswift/swift,jtbandes/swift,aschwaighofer/swift,slavapestov/swift,kusl/swift,IngmarStein/swift,felix91gr/swift,jopamer/swift,KrishMunot/swift,gribozavr/swift,lorentey/swift,uasys/swift,tjw/swift,deyton/swift,bitjammer/swift,felix91gr/swift,kperryua/swift,JGiola/swift,xedin/swift,emilstahl/swift,calebd/swift,bitjammer/swift,swiftix/swift,hughbe/swift,tjw/swift,manavgabhawala/swift,benlangmuir/swift,russbishop/swift,deyton/swift,gregomni/swift,nathawes/swift,danielmartin/swift,johnno1962d/swift,jopamer/swift,jckarter/swift,kusl/swift,sdulal/swift,sdulal/swift,gregomni/swift,harlanhaskins/swift,deyton/swift,shahmishal/swift,lorentey/swift,frootloops/swift,khizkhiz/swift,airspeedswift/swift,danielmartin/swift,kentya6/swift,milseman/swift,khizkhiz/swift,russbishop/swift,khizkhiz/swift,swiftix/swift.old,emilstahl/swift,hughbe/swift,jopamer/swift,calebd/swift,gmilos/swift,adrfer/swift,rudkx/swift,airspeedswift/swift,tardieu/swift,jmgc/swift,adrfer/swift,emilstahl/swift,xwu/swift,stephentyrone/swift,KrishMunot/swift,gribozavr/swift,shahmishal/swift,tkremenek/swift,tjw/swift,jopamer/swift,zisko/swift,tkremenek/swift,modocache/swift,benlangmuir/swift,airspeedswift/swift,glessard/swift,kusl/swift,practicalswift/swift,airspeedswift/swift,khizkhiz/swift,danielmartin/swift,bitjammer/swift,CodaFi/swift,sschiau/swift,stephentyrone/swift,zisko/swift,codestergit/swift,tardieu/swift,calebd/swift,austinzheng/swift,aschwaighofer/swift,IngmarStein/swift,ben-ng/swift,felix91gr/swift,jmgc/swift,manavgabhawala/swift,kstaring/swift,johnno1962d/swift,hughbe/swift,return/swift,manavgabhawala/swift,modocache/swift,MukeshKumarS/Swift,KrishMunot/swift,kentya6/swift,deyton/swift,SwiftAndroid/swift,calebd/swift,uasys/swift,aschwaighofer/swift,xwu/swift,tkremenek/swift,tkremenek/swift,devincoughlin/swift,OscarSwanros/swift,shahmishal/swift,tjw/swift,practicalswift/swift,aschwaighofer/swift,LeoShimonaka/swift,LeoShimonaka/swift,shahmishal/swift,sschiau/swift,SwiftAndroid/swift,sdulal/swift,glessard/swift,manavgabhawala/swift,harlanhaskins/swift,huonw/swift,kperryua/swift,devincoughlin/swift,aschwaighofer/swift,atrick/swift,emilstahl/swift,allevato/swift,dduan/swift,milseman/swift,benlangmuir/swift,tjw/swift,gmilos/swift,modocache/swift,stephentyrone/swift,roambotics/swift,stephentyrone/swift,JaSpa/swift,jmgc/swift,CodaFi/swift,natecook1000/swift,sdulal/swift,zisko/swift,gottesmm/swift,shajrawi/swift,brentdax/swift,tardieu/swift,natecook1000/swift,russbishop/swift,allevato/swift,hughbe/swift,cbrentharris/swift,gregomni/swift,allevato/swift,johnno1962d/swift,karwa/swift,dreamsxin/swift,cbrentharris/swift,felix91gr/swift,gottesmm/swift,djwbrown/swift,aschwaighofer/swift,shajrawi/swift,xwu/swift,austinzheng/swift,return/swift,roambotics/swift,shajrawi/swift,zisko/swift,johnno1962d/swift,alblue/swift,Jnosh/swift,tjw/swift,manavgabhawala/swift,huonw/swift,zisko/swift,allevato/swift,lorentey/swift,kentya6/swift,manavgabhawala/swift,ahoppen/swift,tinysun212/swift-windows,arvedviehweger/swift,sschiau/swift,atrick/swift,milseman/swift,dduan/swift,frootloops/swift,ben-ng/swift,sdulal/swift,jtbandes/swift,mightydeveloper/swift,return/swift,harlanhaskins/swift,allevato/swift,jtbandes/swift,calebd/swift,arvedviehweger/swift,benlangmuir/swift,jopamer/swift,devincoughlin/swift,alblue/swift,gottesmm/swift,djwbrown/swift,SwiftAndroid/swift,nathawes/swift,jckarter/swift,apple/swift,sschiau/swift,felix91gr/swift,natecook1000/swift,therealbnut/swift,jopamer/swift,devincoughlin/swift,modocache/swift,dduan/swift,kstaring/swift,JaSpa/swift,JaSpa/swift,Ivacker/swift,emilstahl/swift,austinzheng/swift,ken0nek/swift,arvedviehweger/swift,LeoShimonaka/swift,atrick/swift,KrishMunot/swift,Jnosh/swift,milseman/swift,xwu/swift,mightydeveloper/swift,ken0nek/swift,russbishop/swift,modocache/swift,ken0nek/swift,khizkhiz/swift,apple/swift,therealbnut/swift,xedin/swift,CodaFi/swift,kperryua/swift,dduan/swift,ben-ng/swift,lorentey/swift,xedin/swift,parkera/swift,xedin/swift,codestergit/swift,mightydeveloper/swift,gregomni/swift,kusl/swift,felix91gr/swift,apple/swift,gribozavr/swift,JaSpa/swift,russbishop/swift,codestergit/swift,airspeedswift/swift,dduan/swift,nathawes/swift,slavapestov/swift,djwbrown/swift,kusl/swift,karwa/swift,devincoughlin/swift,return/swift,calebd/swift,sdulal/swift,karwa/swift,brentdax/swift,manavgabhawala/swift,MukeshKumarS/Swift,tinysun212/swift-windows,swiftix/swift.old,jckarter/swift,glessard/swift,lorentey/swift,felix91gr/swift,JGiola/swift,huonw/swift,milseman/swift,rudkx/swift,amraboelela/swift,devincoughlin/swift,ahoppen/swift,mightydeveloper/swift,adrfer/swift,Ivacker/swift,swiftix/swift.old,kperryua/swift,codestergit/swift,Ivacker/swift,benlangmuir/swift,uasys/swift,jckarter/swift,kentya6/swift,LeoShimonaka/swift,mightydeveloper/swift,cbrentharris/swift,arvedviehweger/swift,harlanhaskins/swift,tkremenek/swift,CodaFi/swift,amraboelela/swift,djwbrown/swift,modocache/swift,IngmarStein/swift,russbishop/swift,rudkx/swift,devincoughlin/swift,JaSpa/swift,practicalswift/swift,hooman/swift,jmgc/swift,johnno1962d/swift,MukeshKumarS/Swift,gmilos/swift,frootloops/swift,jckarter/swift,cbrentharris/swift,ben-ng/swift,kentya6/swift,slavapestov/swift,jtbandes/swift,slavapestov/swift,kusl/swift,benlangmuir/swift,alblue/swift