Function addAntecedent

test/fixtures/snapshot/typescript.js:45438–45443

(label, antecedent)

            flow.flags |= flow.flags & 2048 /* FlowFlags.Referenced */ ? 4096 /* FlowFlags.Shared */ : 2048 /* FlowFlags.Referenced */;
        }
        function addAntecedent(label, antecedent) {
            if (!(antecedent.flags & 1 /* FlowFlags.Unreachable */) && !ts.contains(label.antecedents, antecedent)) {
                (label.antecedents || (label.antecedents = [])).push(antecedent);
                setFlowNodeReferenced(antecedent);
            }
        }
        function createFlowCondition(flags, antecedent, expression) {
            if (antecedent.flags & 1 /* FlowFlags.Unreachable */) {
                return antecedent;