### Godot version

v4.0.beta17.official [c40020513]

### System information

Apple M1 Max - macOS Ventura 13.1 (22C65)

### Issue description

I am getting an error due to functions no longer returning the correct typed array, when the function concatenates arrays and returns it.

In other words, the following fails:

```
func add_arrays() -> Array[ClassA]:
	var array_1: Array[ClassA] = []
	var array_2: Array[ClassA] = []
	return array_1 + array_2
```

<img width="864" alt="Screenshot 2023-02-02 at 1 02 53 PM" src="https://user-images.githubusercontent.com/905216/216320503-475bf4a1-353e-455c-87d5-69d036db706c.png">

I'm assuming when concatenating, the typing changes to a generic `Array` now? Just a guess. 

### Steps to reproduce

N/A

### Minimal reproduction project

[Godot Crash Project.zip](https://github.com/godotengine/godot/files/10568780/Godot.Crash.Project.zip)

bool is_void_function = has_expected_type && expected_type.is_hard_type() && expected_type.kind == GDScriptParser::DataType::BUILTIN && expected_type.builtin_type == Variant::NIL;
		bool is_call = p_return->return_value->type == GDScriptParser::Node::CALL;
		if (is_void_function && is_call) {
			
			reduce_call(static_cast<GDScriptParser::CallNode *>(p_return->return_value), false, true);
		} else {
			reduce_expression(p_return->return_value);
		}
		if (is_void_function) {
			p_return->void_return = true;
			const GDScriptParser::DataType &return_type = p_return->return_value->datatype;
			if (is_call && !return_type.is_hard_type()) {
				String function_name = parser->current_function->identifier ? parser->current_function->identifier->name.operator String() : String("<anonymous function>");
				String called_function_name = static_cast<GDScriptParser::CallNode *>(p_return->return_value)->function_name.operator String();
#ifdef DEBUG_ENABLED
				parser->push_warning(p_return, GDScriptWarning::UNSAFE_VOID_RETURN, function_name, called_function_name);
#endif
				mark_node_unsafe(p_return);
			} else if (!is_call) {
				push_error("A void function cannot return a value.", p_return);
			}
			result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
			result.kind = GDScriptParser::DataType::BUILTIN;
			result.builtin_type = Variant::NIL;
			result.is_constant = true;
		} else {
			if (p_return->return_value->type == GDScriptParser::Node::ARRAY && has_expected_type && expected_type.has_container_element_type()) {
				update_array_literal_element_type(static_cast<GDScriptParser::ArrayNode *>(p_return->return_value), expected_type.get_container_element_type());
			}
			if (has_expected_type && expected_type.is_hard_type() && p_return->return_value->is_constant) {