================================================================================
Simple labeled for
================================================================================
label: for i in 0 .. 10 {
    println(i)
}
--------------------------------------------------------------------------------

(source_file
  (labeled_statement
    (label_definition
      (identifier))
    (for_statement
      (range_clause
        (var_definition_list
          (var_definition
            (identifier)))
        (range
          (literal
            (int_literal))
          (literal
            (int_literal))))
      (block
        (simple_statement
          (call_expression
            (reference_expression
              (identifier))
            (argument_list
              (argument
                (reference_expression
                  (identifier))))))))))

================================================================================
Break/continue/goto with label
================================================================================
label: for i in 0 .. 10 {
    break label
    continue label
    goto label
}
--------------------------------------------------------------------------------

(source_file
  (labeled_statement
    (label_definition
      (identifier))
    (for_statement
      (range_clause
        (var_definition_list
          (var_definition
            (identifier)))
        (range
          (literal
            (int_literal))
          (literal
            (int_literal))))
      (block
        (break_statement
          (label_reference
            (identifier)))
        (continue_statement
          (label_reference
            (identifier)))
        (goto_statement
          (label_reference
            (identifier)))))))
