Add formerly-crashing test case from rdar://problem/19840527.
Add formerly-crashing test case from rdar://problem/19840527.

Swift SVN r29980

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