Completed my changes to the playground transform to support brace entry/exit.  We now maintain a stack of brace statements we know we're inside. The elements of this stack are colored:
Completed my changes to the playground transform
to support brace entry/exit.  We now maintain a
stack of brace statements we know we're inside.
The elements of this stack are colored:

- If we encounter a loop, while we are walking
  that loop we color its container to indicate
  that "break" and "continue" exit all braces
  up until the container of the loop.

- If we encounter a function, while we are
  walking that function we color its container
  to indicate that "return" exits all braces
  up until the container of the function.

Since at this point every BraceStmt is modified,
we don't need the "Modified" flag and I excised
it.


Swift SVN r16230

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