[sil-arc-opts] Strip off casts when determining the state associated with an instruction's operand.
[sil-arc-opts] Strip off casts when determining the state associated with an instruction's operand.

Casting in between different types will not affect a pointers reference count.

This increases the number of increment/decrement pairs we remove from 1720 ->
2040 pairs.

Swift SVN r13013

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