Make test more stable.
Make test more stable.

The patch is from Andy. Thanks!

rdar://problem/21057506




Swift SVN r28910

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