Work around single-expression closure not returning Void.
Work around single-expression closure not returning Void.

Swift SVN r19009

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