typedef struct reference_expression_t reference_expression_t;
typedef struct cast_expression_t cast_expression_t;
typedef struct call_argument_t call_argument_t;
-typedef struct type_argument_t type_argument_t;
typedef struct call_expression_t call_expression_t;
typedef struct binary_expression_t binary_expression_t;
typedef struct unary_expression_t unary_expression_t;
typedef struct builtin_constant_expression_t builtin_constant_expression_t;
typedef struct builtin_types_compatible_expression_t builtin_types_compatible_expression_t;
typedef struct classify_type_expression_t classify_type_expression_t;
-typedef struct bitfield_extract_expression_t bitfield_extract_expression_t;
typedef struct label_address_expression_t label_address_expression_t;
typedef union expression_t expression_t;