[test] Update ClangImporter/enum-anon.swift for Clang improvements (#20804)
[test] Update ClangImporter/enum-anon.swift for Clang improvements (#20804)

We previously weren't able to import something properly, but now it's
working because of some change in Clang. Let's take it!

rdar://problem/46263312
airspeedswift/swift,xedin/swift,hooman/swift,CodaFi/swift,rudkx/swift,jckarter/swift,practicalswift/swift,glessard/swift,gribozavr/swift,tkremenek/swift,nathawes/swift,shajrawi/swift,CodaFi/swift,atrick/swift,jmgc/swift,hooman/swift,tkremenek/swift,benlangmuir/swift,sschiau/swift,sschiau/swift,allevato/swift,xwu/swift,devincoughlin/swift,gribozavr/swift,apple/swift,allevato/swift,aschwaighofer/swift,airspeedswift/swift,shajrawi/swift,shajrawi/swift,roambotics/swift,aschwaighofer/swift,sschiau/swift,karwa/swift,xedin/swift,rudkx/swift,JGiola/swift,hooman/swift,aschwaighofer/swift,xwu/swift,aschwaighofer/swift,xwu/swift,gregomni/swift,apple/swift,shahmishal/swift,stephentyrone/swift,jmgc/swift,glessard/swift,shahmishal/swift,harlanhaskins/swift,jmgc/swift,JGiola/swift,practicalswift/swift,karwa/swift,ahoppen/swift,xwu/swift,jckarter/swift,hooman/swift,nathawes/swift,rudkx/swift,airspeedswift/swift,ahoppen/swift,shahmishal/swift,devincoughlin/swift,lorentey/swift,aschwaighofer/swift,rudkx/swift,stephentyrone/swift,xwu/swift,gribozavr/swift,shajrawi/swift,allevato/swift,devincoughlin/swift,parkera/swift,jckarter/swift,practicalswift/swift,airspeedswift/swift,shajrawi/swift,apple/swift,allevato/swift,atrick/swift,benlangmuir/swift,xwu/swift,stephentyrone/swift,tkremenek/swift,nathawes/swift,xwu/swift,jckarter/swift,hooman/swift,shajrawi/swift,practicalswift/swift,parkera/swift,devincoughlin/swift,lorentey/swift,stephentyrone/swift,jmgc/swift,CodaFi/swift,benlangmuir/swift,aschwaighofer/swift,tkremenek/swift,xedin/swift,benlangmuir/swift,shahmishal/swift,atrick/swift,tkremenek/swift,sschiau/swift,sschiau/swift,JGiola/swift,harlanhaskins/swift,sschiau/swift,parkera/swift,allevato/swift,lorentey/swift,glessard/swift,roambotics/swift,parkera/swift,parkera/swift,lorentey/swift,nathawes/swift,lorentey/swift,practicalswift/swift,gregomni/swift,shajrawi/swift,nathawes/swift,gribozavr/swift,roambotics/swift,gribozavr/swift,tkremenek/swift,shahmishal/swift,xedin/swift,airspeedswift/swift,CodaFi/swift,ahoppen/swift,atrick/swift,karwa/swift,jmgc/swift,devincoughlin/swift,shahmishal/swift,rudkx/swift,lorentey/swift,airspeedswift/swift,karwa/swift,shajrawi/swift,harlanhaskins/swift,practicalswift/swift,stephentyrone/swift,karwa/swift,gregomni/swift,lorentey/swift,parkera/swift,jckarter/swift,sschiau/swift,harlanhaskins/swift,atrick/swift,karwa/swift,ahoppen/swift,allevato/swift,parkera/swift,glessard/swift,nathawes/swift,JGiola/swift,CodaFi/swift,devincoughlin/swift,apple/swift,karwa/swift,atrick/swift,practicalswift/swift,karwa/swift,xedin/swift,aschwaighofer/swift,hooman/swift,tkremenek/swift,jmgc/swift,apple/swift,CodaFi/swift,shahmishal/swift,CodaFi/swift,glessard/swift,jckarter/swift,xedin/swift,harlanhaskins/swift,hooman/swift,devincoughlin/swift,ahoppen/swift,gribozavr/swift,benlangmuir/swift,glessard/swift,jmgc/swift,stephentyrone/swift,parkera/swift,stephentyrone/swift,airspeedswift/swift,nathawes/swift,roambotics/swift,harlanhaskins/swift,gregomni/swift,gregomni/swift,practicalswift/swift,rudkx/swift,ahoppen/swift,shahmishal/swift,JGiola/swift,roambotics/swift,allevato/swift,devincoughlin/swift,sschiau/swift,gregomni/swift,lorentey/swift,roambotics/swift,benlangmuir/swift,apple/swift,gribozavr/swift,xedin/swift,jckarter/swift,gribozavr/swift,JGiola/swift,harlanhaskins/swift,xedin/swift