[stdlib] Make sure _SwiftNewtypeWrapper hashes the same way as its RawValue
[stdlib] Make sure _SwiftNewtypeWrapper hashes the same way as its RawValue

_SwiftNewtypeWrapper forwarded hashValue to its rawValue, but it failed to do the same for _hash(into:), which resulted in the wrapper struct having subtly different hashing than the raw value.

This violated an implicit invariant when dictionaries/sets of such types were bridged to Objective-C through AnyHashable, leading to nondeterministic but frequent crashes.

rdar://problem/39398060

glessard/swift,airspeedswift/swift,devincoughlin/swift,devincoughlin/swift,nathawes/swift,karwa/swift,practicalswift/swift,airspeedswift/swift,shahmishal/swift,lorentey/swift,stephentyrone/swift,airspeedswift/swift,natecook1000/swift,aschwaighofer/swift,ahoppen/swift,CodaFi/swift,xwu/swift,huonw/swift,jmgc/swift,CodaFi/swift,harlanhaskins/swift,karwa/swift,roambotics/swift,apple/swift,tjw/swift,apple/swift,allevato/swift,karwa/swift,atrick/swift,danielmartin/swift,tkremenek/swift,tkremenek/swift,amraboelela/swift,parkera/swift,shajrawi/swift,apple/swift,aschwaighofer/swift,alblue/swift,apple/swift,allevato/swift,alblue/swift,brentdax/swift,airspeedswift/swift,lorentey/swift,gribozavr/swift,karwa/swift,xedin/swift,airspeedswift/swift,practicalswift/swift,karwa/swift,brentdax/swift,sschiau/swift,jckarter/swift,CodaFi/swift,shajrawi/swift,ahoppen/swift,jmgc/swift,practicalswift/swift,gribozavr/swift,alblue/swift,hooman/swift,ahoppen/swift,huonw/swift,austinzheng/swift,JGiola/swift,shahmishal/swift,parkera/swift,natecook1000/swift,austinzheng/swift,jopamer/swift,shahmishal/swift,allevato/swift,stephentyrone/swift,xwu/swift,rudkx/swift,rudkx/swift,danielmartin/swift,practicalswift/swift,huonw/swift,glessard/swift,nathawes/swift,gribozavr/swift,sschiau/swift,hooman/swift,apple/swift,airspeedswift/swift,jckarter/swift,atrick/swift,tkremenek/swift,tjw/swift,harlanhaskins/swift,aschwaighofer/swift,alblue/swift,shajrawi/swift,harlanhaskins/swift,tjw/swift,gregomni/swift,rudkx/swift,tjw/swift,karwa/swift,aschwaighofer/swift,JGiola/swift,nathawes/swift,allevato/swift,parkera/swift,benlangmuir/swift,gribozavr/swift,benlangmuir/swift,devincoughlin/swift,roambotics/swift,danielmartin/swift,sschiau/swift,harlanhaskins/swift,parkera/swift,parkera/swift,brentdax/swift,natecook1000/swift,brentdax/swift,tjw/swift,allevato/swift,glessard/swift,natecook1000/swift,harlanhaskins/swift,jmgc/swift,benlangmuir/swift,harlanhaskins/swift,alblue/swift,shajrawi/swift,jckarter/swift,shahmishal/swift,rudkx/swift,tkremenek/swift,natecook1000/swift,CodaFi/swift,nathawes/swift,lorentey/swift,gribozavr/swift,nathawes/swift,jopamer/swift,roambotics/swift,stephentyrone/swift,sschiau/swift,parkera/swift,practicalswift/swift,shajrawi/swift,shahmishal/swift,stephentyrone/swift,amraboelela/swift,ahoppen/swift,practicalswift/swift,xwu/swift,amraboelela/swift,allevato/swift,huonw/swift,karwa/swift,hooman/swift,nathawes/swift,glessard/swift,jmgc/swift,xwu/swift,ahoppen/swift,xedin/swift,stephentyrone/swift,JGiola/swift,devincoughlin/swift,benlangmuir/swift,danielmartin/swift,rudkx/swift,jmgc/swift,hooman/swift,CodaFi/swift,xedin/swift,brentdax/swift,glessard/swift,brentdax/swift,jckarter/swift,tkremenek/swift,tjw/swift,danielmartin/swift,JGiola/swift,aschwaighofer/swift,austinzheng/swift,shajrawi/swift,lorentey/swift,huonw/swift,ahoppen/swift,xedin/swift,shahmishal/swift,JGiola/swift,glessard/swift,danielmartin/swift,alblue/swift,gregomni/swift,xedin/swift,xedin/swift,amraboelela/swift,jopamer/swift,gribozavr/swift,practicalswift/swift,devincoughlin/swift,austinzheng/swift,gribozavr/swift,shahmishal/swift,amraboelela/swift,gregomni/swift,lorentey/swift,tkremenek/swift,xwu/swift,atrick/swift,karwa/swift,aschwaighofer/swift,sschiau/swift,austinzheng/swift,CodaFi/swift,harlanhaskins/swift,allevato/swift,benlangmuir/swift,lorentey/swift,stephentyrone/swift,airspeedswift/swift,nathawes/swift,gribozavr/swift,jmgc/swift,austinzheng/swift,sschiau/swift,xedin/swift,practicalswift/swift,tkremenek/swift,gregomni/swift,austinzheng/swift,amraboelela/swift,gregomni/swift,apple/swift,shajrawi/swift,danielmartin/swift,sschiau/swift,jopamer/swift,atrick/swift,brentdax/swift,hooman/swift,lorentey/swift,shajrawi/swift,tjw/swift,huonw/swift,rudkx/swift,CodaFi/swift,roambotics/swift,jckarter/swift,natecook1000/swift,sschiau/swift,alblue/swift,xwu/swift,atrick/swift,hooman/swift,jckarter/swift,gregomni/swift,lorentey/swift,jopamer/swift,jckarter/swift,xwu/swift,shahmishal/swift,xedin/swift,parkera/swift,parkera/swift,roambotics/swift,jopamer/swift,amraboelela/swift,aschwaighofer/swift,hooman/swift,atrick/swift,jopamer/swift,stephentyrone/swift,devincoughlin/swift,huonw/swift,devincoughlin/swift,natecook1000/swift,jmgc/swift,roambotics/swift,devincoughlin/swift,JGiola/swift,benlangmuir/swift