{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"///"}]}
    /// This analyzes a column of constructors to 1/ determine which constructors of the type (if
impl<Cx: PatCx> ConstructorSet<Cx> {
    /// any) are missing; 2/ split constructors to handle non-trivial intersections e.g. on ranges