Get the alignment correct for subclasses of AvailabilitySpec.
Get the alignment correct for subclasses of AvailabilitySpec.

Apart from being required by the standard, we also store these objects
in a PointerIntPair, so it's important to not misalign them.

(We should have an -fsanitize=undefined bot to catch this.)

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