[Make] Introduce SWIFT_OPTIMIZED variable, enabled by default like in the cmake build.
[Make] Introduce SWIFT_OPTIMIZED variable, enabled by default like in the cmake build.

This controls the optimization flags for swift files.

Swift SVN r9322

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