### 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 (r_message) {
				*r_message = RTR("Assignment to uniform.");
			}
			return false;
		}
		if (shader->constants.has(var->name) || var->is_const) {
			if (r_message) {
				*r_message = RTR("Constants cannot be modified.");
			}
			return false;
		}
		if (!(p_function_info.built_ins.has(var->name) && p_function_info.built_ins[var->name].constant)) {
			return true;
		}
	} else if (p_node->type == Node::NODE_TYPE_ARRAY) {
		ArrayNode *arr = static_cast<ArrayNode *>(p_node);
		if (shader->constants.has(arr->name) || arr->is_const) {
			if (r_message) {
				*r_message = RTR("Constants cannot be modified.");
			}
			return false;
		}
		return true;
	}
	if (r_message) {
		*r_message = "Assignment to constant expression.";
	}
	return false;
}
bool ShaderLanguage::_propagate_function_call_sampler_uniform_settings(StringName p_name, int p_argument, TextureFilter p_filter, TextureRepeat p_repeat) {