====================
ArrayExpression1
====================

int x = y[3u];

--------------------

(source_file
  (translation_entity
    (declaration
      (declaration_specifier
        (type_specifier_qualifier
          (type_specifier
            (int_type))))
      (init_declarator
        (identifier)
        (initializer
          (assignment_expression
            (logical_expression
              (equality_expression
                (relational_expression
                  (additive_expression
                    (multiplicative_expression
                      (cast_expression
                        (unary_expression
                          (postfix_expression
                            (base_expression
                              (identifier))
                            (expression
                              (assignment_expression
                                (logical_expression
                                  (equality_expression
                                    (relational_expression
                                      (additive_expression
                                        (multiplicative_expression
                                          (cast_expression
                                            (unary_expression
                                              (postfix_expression
                                                (base_expression
                                                  (constant
                                                    (unsigned_integer_literal)))))))))))))))))))))))))))