Add CFG support for do...while.
Add CFG support for do...while.

Swift SVN r2695

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