syntax_data: {"ast_node_type":"variable","tokens":[{"end":94,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let next_sibling = mem::replace(&mut move_paths[parent].first_child, Some(move_path));
context_before:     if let Some(parent) = parent {
context_after:         move_paths[move_path].next_sibling = next_sibling;