[stdlib] Make unavailable protocol implementation `@_alwaysEmitIntoClient` and add a comment about use of Lemire's nearly divisionless method (#38263)
[stdlib] Make unavailable protocol implementation `@_alwaysEmitIntoClient` and add a comment about use of Lemire's nearly divisionless method (#38263)


gregomni/swift,gregomni/swift,benlangmuir/swift,roambotics/swift,xwu/swift,roambotics/swift,parkera/swift,hooman/swift,hooman/swift,benlangmuir/swift,ahoppen/swift,parkera/swift,tkremenek/swift,JGiola/swift,apple/swift,hooman/swift,atrick/swift,glessard/swift,rudkx/swift,roambotics/swift,ahoppen/swift,benlangmuir/swift,rudkx/swift,parkera/swift,apple/swift,glessard/swift,JGiola/swift,parkera/swift,ahoppen/swift,apple/swift,rudkx/swift,glessard/swift,tkremenek/swift,atrick/swift,JGiola/swift,parkera/swift,gregomni/swift,xwu/swift,apple/swift,tkremenek/swift,tkremenek/swift,atrick/swift,gregomni/swift,atrick/swift,apple/swift,benlangmuir/swift,tkremenek/swift,xwu/swift,gregomni/swift,benlangmuir/swift,xwu/swift,hooman/swift,xwu/swift,atrick/swift,ahoppen/swift,JGiola/swift,rudkx/swift,ahoppen/swift,roambotics/swift,hooman/swift,JGiola/swift,atrick/swift,hooman/swift,glessard/swift,JGiola/swift,apple/swift,parkera/swift,rudkx/swift,gregomni/swift,hooman/swift,parkera/swift,benlangmuir/swift,xwu/swift,glessard/swift,glessard/swift,tkremenek/swift,tkremenek/swift,ahoppen/swift,roambotics/swift,xwu/swift,rudkx/swift,roambotics/swift,parkera/swift