[Test] Add a regression test for property wrapper backing initializers that involve inout closure parameters and were previously type checked twice.
[Test] Add a regression test for property wrapper backing initializers that
involve inout closure parameters and were previously type checked twice.

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