### Godot version

4.0.3

### System information

Win7

### Issue description

![image](https://github.com/godotengine/godot/assets/28286958/abec9d3c-e078-424c-9430-d9fe8897aad6)


### Steps to reproduce

1. Create shader
2. Add uint with hex, e.g. 0xffffu

### Minimal reproduction project

N/A
decl.initializer.push_back(n);
							}
							tk = _get_token();
						} else {
							if (tk.type != TK_CURLY_BRACKET_OPEN) {
								if (unknown_size) {
									_set_expected_error("{");
									return ERR_PARSE_ERROR;
								}
								full_def = true;
								DataPrecision precision2 = PRECISION_DEFAULT;
								if (is_token_precision(tk.type)) {
									precision2 = get_token_precision(tk.type);
									tk = _get_token();
									if (!is_token_nonvoid_datatype(tk.type)) {
										_set_error(RTR("Expected data type after precision modifier."));
										return ERR_PARSE_ERROR;
									}
								}
								DataType type2;
								StringName struct_name2 = "";
								if (shader->structs.has(tk.text)) {
									type2 = TYPE_STRUCT;
									struct_name2 = tk.text;
								} else {
									if (!is_token_variable_datatype(tk.type)) {
										_set_error(RTR("Invalid data type for the array."));
										return ERR_PARSE_ERROR;
									}
									type2 = get_token_datatype(tk.type);