==================
Tuple destructuring
==================

fn main() {
    let (a, b) = get_pair();
}

---

(source_file
  (function_item
    name: (identifier)
    parameters: (parameters)
    body: (block
      (let_declaration
        pattern: (tuple_pattern
          (identifier)
          (identifier))
        value: (call_expression
          function: (identifier)
          arguments: (arguments))))))
