[ConstraintSystem] Fix build failures and formatting.
[ConstraintSystem] Fix build failures and formatting.

JGiola/swift,tkremenek/swift,tkremenek/swift,jmgc/swift,tkremenek/swift,gregomni/swift,benlangmuir/swift,xwu/swift,hooman/swift,parkera/swift,atrick/swift,hooman/swift,xwu/swift,JGiola/swift,ahoppen/swift,rudkx/swift,apple/swift,gregomni/swift,hooman/swift,glessard/swift,ahoppen/swift,atrick/swift,roambotics/swift,ahoppen/swift,ahoppen/swift,JGiola/swift,jmgc/swift,parkera/swift,parkera/swift,glessard/swift,jmgc/swift,apple/swift,jmgc/swift,parkera/swift,benlangmuir/swift,gregomni/swift,parkera/swift,tkremenek/swift,gregomni/swift,JGiola/swift,rudkx/swift,roambotics/swift,glessard/swift,hooman/swift,tkremenek/swift,apple/swift,benlangmuir/swift,glessard/swift,apple/swift,xwu/swift,apple/swift,jmgc/swift,parkera/swift,atrick/swift,ahoppen/swift,JGiola/swift,hooman/swift,xwu/swift,rudkx/swift,atrick/swift,benlangmuir/swift,hooman/swift,glessard/swift,hooman/swift,atrick/swift,apple/swift,atrick/swift,tkremenek/swift,JGiola/swift,jmgc/swift,gregomni/swift,roambotics/swift,jmgc/swift,roambotics/swift,glessard/swift,parkera/swift,benlangmuir/swift,rudkx/swift,parkera/swift,xwu/swift,xwu/swift,gregomni/swift,xwu/swift,rudkx/swift,ahoppen/swift,roambotics/swift,roambotics/swift,benlangmuir/swift,rudkx/swift,tkremenek/swift