Part 1 of 2: make "for (;;)" work
Part 1 of 2: make "for (;;)" work

Swift SVN r3830

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