extern tree size_in_bytes (const_tree);
extern HOST_WIDE_INT int_size_in_bytes (const_tree);
extern HOST_WIDE_INT max_int_size_in_bytes (const_tree);
+extern tree tree_expr_size (const_tree);
extern tree bit_position (const_tree);
extern HOST_WIDE_INT int_bit_position (const_tree);
extern tree byte_position (const_tree);