{"ast_node_type":"variable","tokens":[{"end":51,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(flag) = self.drop_flags[path] {
    fn set_drop_flag(&mut self, loc: Location, path: MovePathIndex, val: DropFlagState) {
            let span = self.patch.source_info_for_location(self.body, loc).span;