revert r15378.  It turns out that PatternBindingDecls are the ones that are botching the immutability issue.
revert r15378.  It turns out that PatternBindingDecls are the ones that are botching
the immutability issue.


Swift SVN r15392

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