change enum SourceKitdError's case to lower camel case
change enum SourceKitdError's case to lower camel case

- EditorOpenError to editorOpenError
- EditorCloseError to editorCloseError

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