[Frontend] Set the primary file to the code-completion point if one exists.
[Frontend] Set the primary file to the code-completion point if one exists.

Swift SVN r22688

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