now that we don't need to cache anything, TupleFlattening has no state.  Replace the class with a bunch of static functions.
now that we don't need to cache anything, TupleFlattening
has no state.  Replace the class with a bunch of static
functions.


Swift SVN r7249

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