163         let childNode = this.nodeMap.get(edge.toNodeId);  variable
172         let firstRetainerSlotIndex = this.firstRetainerIndex[childNode.nodeIndex];  variable
333       let childNode = this.nodeMap.get(edge.toNodeId);  variable
430             let childNode = this.nodeMap.get(edge.toNodeId);  variable
637       let childNode = this.nodeMap.get(edge.toNodeId);  variable
651       let childNode = this.nodeMap.get(edge.toNodeId);  variable
664         let childNode = this.nodeMap.get(edge.toNodeId);  variable
705         let childNode = this.nodeMap.get(edge.toNodeId);  variable
967       let childNode = this.nodeMap.get(edge.toNodeId);  variable
1058     for (let childNode of retains) {  variable
1059       let node = this.nodes[childNode.index];  variable