### Godot version

4.0-rc1

### System information

Windows 10

### Issue description

The code: `@export @onready var camera_system : Node3D`

Is throwing: `Line 5:The "@onready" annotation will make the default value to be set after the "@export" takes effect and will override it. (Warning treated as error.)` and is crashing the game.

Unchecking "Treat Warning as Errors" seems to have no effect:

![imagen](https://user-images.githubusercontent.com/248383/217900756-8e214c40-68fb-4fb2-8509-a1e689725930.png)

![imagen](https://user-images.githubusercontent.com/248383/217901253-3b758ebc-48e9-40fe-8d77-16fce7cbae88.png)


### Steps to reproduce

- Write `@export @onready var some_var : Node3D`
- In Project Settings, uncheck `Treat Warning as Errors`
- Try to run the project, a `Parser Error` will be thrown.

### Minimal reproduction project

It's as simple as adding one line of code, so I'm not sure a MRP is needed.
switch (type) {
		case SuiteNode::Local::PARAMETER:
			return "parameter";
		case SuiteNode::Local::CONSTANT:
			return "constant";
		case SuiteNode::Local::VARIABLE:
			return "variable";
		case SuiteNode::Local::FOR_VARIABLE:
			return "for loop iterator";
		case SuiteNode::Local::PATTERN_BIND:
			return "pattern_bind";
		case SuiteNode::Local::UNDEFINED:
			return "<undefined>";
		default:
			return String();
	}
}
String GDScriptParser::DataType::to_string() const {