[Diagnostics] Diagnose ambiguities related to ephemeral pointers
[Diagnostics] Diagnose ambiguities related to ephemeral pointers

Diagnose ambiguity related to overloaded declarations where only
*some* of the overload choices have ephemeral pointer warnings/errors
associated with them. Such situations have be handled specifically
because ephemeral fixes do not affect the score.

If all of the overloads have ephemeral fixes associated with them
it's much easier to diagnose through notes associated with each fix.

CodaFi/swift,roambotics/swift,ahoppen/swift,hooman/swift,parkera/swift,roambotics/swift,benlangmuir/swift,harlanhaskins/swift,JGiola/swift,jmgc/swift,JGiola/swift,jmgc/swift,parkera/swift,airspeedswift/swift,atrick/swift,glessard/swift,JGiola/swift,allevato/swift,tkremenek/swift,xwu/swift,apple/swift,atrick/swift,JGiola/swift,benlangmuir/swift,benlangmuir/swift,stephentyrone/swift,hooman/swift,jckarter/swift,ahoppen/swift,JGiola/swift,harlanhaskins/swift,gregomni/swift,jmgc/swift,glessard/swift,rudkx/swift,nathawes/swift,atrick/swift,atrick/swift,parkera/swift,ahoppen/swift,tkremenek/swift,jckarter/swift,roambotics/swift,nathawes/swift,xwu/swift,aschwaighofer/swift,glessard/swift,aschwaighofer/swift,jckarter/swift,stephentyrone/swift,CodaFi/swift,airspeedswift/swift,tkremenek/swift,rudkx/swift,parkera/swift,harlanhaskins/swift,apple/swift,glessard/swift,apple/swift,xwu/swift,xwu/swift,nathawes/swift,CodaFi/swift,hooman/swift,apple/swift,glessard/swift,rudkx/swift,gregomni/swift,airspeedswift/swift,nathawes/swift,gregomni/swift,rudkx/swift,airspeedswift/swift,glessard/swift,xwu/swift,tkremenek/swift,benlangmuir/swift,CodaFi/swift,aschwaighofer/swift,benlangmuir/swift,parkera/swift,nathawes/swift,jckarter/swift,gregomni/swift,benlangmuir/swift,gregomni/swift,xwu/swift,stephentyrone/swift,allevato/swift,airspeedswift/swift,jmgc/swift,aschwaighofer/swift,atrick/swift,aschwaighofer/swift,rudkx/swift,jmgc/swift,roambotics/swift,stephentyrone/swift,jckarter/swift,hooman/swift,nathawes/swift,allevato/swift,harlanhaskins/swift,jmgc/swift,stephentyrone/swift,CodaFi/swift,airspeedswift/swift,CodaFi/swift,hooman/swift,allevato/swift,CodaFi/swift,aschwaighofer/swift,apple/swift,tkremenek/swift,atrick/swift,parkera/swift,parkera/swift,allevato/swift,allevato/swift,jckarter/swift,rudkx/swift,gregomni/swift,harlanhaskins/swift,ahoppen/swift,ahoppen/swift,stephentyrone/swift,roambotics/swift,harlanhaskins/swift,jmgc/swift,roambotics/swift,stephentyrone/swift,jckarter/swift,airspeedswift/swift,hooman/swift,parkera/swift,ahoppen/swift,apple/swift,hooman/swift,aschwaighofer/swift,xwu/swift,JGiola/swift,nathawes/swift,allevato/swift,tkremenek/swift,harlanhaskins/swift,tkremenek/swift