syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"next_child_index"}]}
source_snippet:             next_child_index = move_data.move_paths[child_index].next_sibling;
context_before:             on_all_children_bits(move_data, child_index, each_child);
context_after:         }