Fix SceneKit test on iOS.
Fix SceneKit test on iOS.

Swift SVN r30408

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