[CSFix] Require all sub-classes of `ContextualMismatch` to supply a kind
[CSFix] Require all sub-classes of `ContextualMismatch` to supply a kind

roambotics/swift,gregomni/swift,xwu/swift,atrick/swift,rudkx/swift,JGiola/swift,gregomni/swift,rudkx/swift,apple/swift,xwu/swift,apple/swift,atrick/swift,JGiola/swift,apple/swift,benlangmuir/swift,JGiola/swift,benlangmuir/swift,xwu/swift,glessard/swift,roambotics/swift,xwu/swift,rudkx/swift,gregomni/swift,benlangmuir/swift,xwu/swift,roambotics/swift,ahoppen/swift,JGiola/swift,JGiola/swift,ahoppen/swift,roambotics/swift,benlangmuir/swift,ahoppen/swift,ahoppen/swift,atrick/swift,ahoppen/swift,glessard/swift,rudkx/swift,benlangmuir/swift,atrick/swift,benlangmuir/swift,apple/swift,glessard/swift,xwu/swift,glessard/swift,roambotics/swift,rudkx/swift,apple/swift,xwu/swift,gregomni/swift,gregomni/swift,roambotics/swift,atrick/swift,glessard/swift,ahoppen/swift,apple/swift,atrick/swift,gregomni/swift,glessard/swift,JGiola/swift,rudkx/swift