Update LangRef for 'x as T'.
Update LangRef for 'x as T'.

Swift SVN r8813

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