### 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
if (!is_struct && !is_token_datatype(tk.type)) {
						_set_error(RTR("Expected a valid data type for argument."));
						return ERR_PARSE_ERROR;
					}
					if (param_qualifier == ARGUMENT_QUALIFIER_OUT || param_qualifier == ARGUMENT_QUALIFIER_INOUT) {
						if (is_sampler_type(get_token_datatype(tk.type))) {
							_set_error(RTR("Opaque types cannot be output parameters."));
							return ERR_PARSE_ERROR;
						}
					}
					if (is_struct) {
						param_type = TYPE_STRUCT;
					} else {
						param_type = get_token_datatype(tk.type);
						if (param_type == TYPE_VOID) {
							_set_error(RTR("Void type not allowed as argument."));
							return ERR_PARSE_ERROR;
						}
					}
					if (param_precision != PRECISION_DEFAULT && _validate_precision(param_type, param_precision) != OK) {
						return ERR_PARSE_ERROR;
					}
#ifdef DEBUG_ENABLED
					keyword_completion_context = CF_UNSPECIFIED;
#endif 
					tk = _get_token();
					if (tk.type == TK_BRACKET_OPEN) {
						Error error = _parse_array_size(nullptr, constants, true, nullptr, &arg_array_size, nullptr);
						if (error != OK) {
							return error;