Revert "[stdlib] ArrayBuffer: replace unsafeBitCasts"
Revert "[stdlib] ArrayBuffer: replace unsafeBitCasts"

This reverts r22824 as it appeared to be causing

Swift SVN r22826

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