[sil-combine] Strip off ref count identiy preserving operations from retain_value and release_value.
[sil-combine] Strip off ref count identiy preserving operations from retain_value and release_value.

Swift SVN r21567

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