Add missing access path filters for DerivedFileUnit.
Add missing access path filters for DerivedFileUnit.

I can't see this ever actually being an issue, but if someone performs a
scoped import on another module, and that module synthesizes a derived
declaration, further lookups shouldn't find that declaration if the name
doesn't match the import scope.

Swift SVN r14487

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