[Reflection] Reject BuiltinTypeDescriptors with non-power-of-two alignments.
[Reflection] Reject BuiltinTypeDescriptors with non-power-of-two alignments.

rdar://problem/56784375
karwa/swift,jckarter/swift,hooman/swift,airspeedswift/swift,gregomni/swift,jckarter/swift,apple/swift,hooman/swift,roambotics/swift,rudkx/swift,rudkx/swift,jckarter/swift,benlangmuir/swift,benlangmuir/swift,parkera/swift,benlangmuir/swift,aschwaighofer/swift,lorentey/swift,nathawes/swift,glessard/swift,roambotics/swift,glessard/swift,xwu/swift,hooman/swift,glessard/swift,lorentey/swift,parkera/swift,lorentey/swift,atrick/swift,gribozavr/swift,harlanhaskins/swift,aschwaighofer/swift,karwa/swift,gregomni/swift,apple/swift,xwu/swift,roambotics/swift,ahoppen/swift,allevato/swift,ahoppen/swift,atrick/swift,airspeedswift/swift,JGiola/swift,gribozavr/swift,gregomni/swift,hooman/swift,benlangmuir/swift,allevato/swift,xwu/swift,parkera/swift,tkremenek/swift,stephentyrone/swift,gribozavr/swift,tkremenek/swift,aschwaighofer/swift,CodaFi/swift,gribozavr/swift,stephentyrone/swift,JGiola/swift,apple/swift,jmgc/swift,aschwaighofer/swift,airspeedswift/swift,atrick/swift,rudkx/swift,atrick/swift,nathawes/swift,airspeedswift/swift,lorentey/swift,harlanhaskins/swift,lorentey/swift,airspeedswift/swift,karwa/swift,CodaFi/swift,tkremenek/swift,gribozavr/swift,allevato/swift,xwu/swift,CodaFi/swift,glessard/swift,glessard/swift,hooman/swift,stephentyrone/swift,JGiola/swift,airspeedswift/swift,airspeedswift/swift,karwa/swift,benlangmuir/swift,JGiola/swift,CodaFi/swift,karwa/swift,harlanhaskins/swift,gribozavr/swift,karwa/swift,CodaFi/swift,apple/swift,nathawes/swift,jckarter/swift,allevato/swift,benlangmuir/swift,roambotics/swift,lorentey/swift,harlanhaskins/swift,jmgc/swift,parkera/swift,jmgc/swift,aschwaighofer/swift,gribozavr/swift,xwu/swift,tkremenek/swift,rudkx/swift,stephentyrone/swift,jmgc/swift,apple/swift,glessard/swift,ahoppen/swift,allevato/swift,harlanhaskins/swift,gregomni/swift,harlanhaskins/swift,parkera/swift,jmgc/swift,roambotics/swift,atrick/swift,jckarter/swift,tkremenek/swift,stephentyrone/swift,lorentey/swift,hooman/swift,ahoppen/swift,karwa/swift,xwu/swift,jckarter/swift,tkremenek/swift,parkera/swift,jmgc/swift,atrick/swift,stephentyrone/swift,JGiola/swift,gribozavr/swift,ahoppen/swift,stephentyrone/swift,aschwaighofer/swift,gregomni/swift,nathawes/swift,lorentey/swift,allevato/swift,parkera/swift,rudkx/swift,parkera/swift,xwu/swift,CodaFi/swift,jmgc/swift,jckarter/swift,nathawes/swift,nathawes/swift,karwa/swift,gregomni/swift,ahoppen/swift,JGiola/swift,CodaFi/swift,roambotics/swift,apple/swift,hooman/swift,aschwaighofer/swift,tkremenek/swift,harlanhaskins/swift,nathawes/swift,rudkx/swift,allevato/swift