[Sema] Fix crash when applying '@objc' to an invalid method.
[Sema] Fix crash when applying '@objc' to an invalid method.

Swift SVN r10602

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