Fixing up IRGenModule to handle changes in CodeGenOptions.
Fixing up IRGenModule to handle changes in CodeGenOptions.

DisableFPElim was removed from CGO in cfe r366645. This change fixes the build
for master-next.

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