fix name lookup to search through all modules to build the candidate set, instead of stopping with the first module that matches.  Without this, we don't get the unified overload set for all "+" operators, for example.  We arguably should stop searching when we get a type (since they cannot be overloaded) but we can treat that as a follow on issue.
fix name lookup to search through all modules to build the candidate set, instead of stopping with the first module that matches.  Without this, we don't get the unified overload set for all "+" operators, for example.  We arguably should stop searching when we get a type (since they cannot be overloaded) but we can treat that as a follow on issue.


Swift SVN r1481

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