[ls-opts] Pass in the size of the post order to BBToBBIDMap so we can avoid unnecessary memory allocation.
[ls-opts] Pass in the size of the post order to BBToBBIDMap so we can avoid unnecessary memory allocation.

Swift SVN r23590

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