{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(pos) = module.file_path_stack.iter().position(|p| p == &mp.file_path) {
        // Ensure file paths are acyclic.
            do yeet ModError::CircularInclusion(module.file_path_stack[pos..].to_vec());