### 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)

}
	if (p_cast->operand->type == GDScriptParser::Node::ARRAY && cast_type.has_container_element_type()) {
		update_array_literal_element_type(static_cast<GDScriptParser::ArrayNode *>(p_cast->operand), cast_type.get_container_element_type());
	}
	if (!cast_type.is_variant()) {
		GDScriptParser::DataType op_type = p_cast->operand->get_datatype();
		if (op_type.is_variant() || !op_type.is_hard_type()) {
			mark_node_unsafe(p_cast);
#ifdef DEBUG_ENABLED
			if (op_type.is_variant() && !op_type.is_hard_type()) {
				parser->push_warning(p_cast, GDScriptWarning::UNSAFE_CAST, cast_type.to_string());
			}
#endif
		} else {
			bool valid = false;
			if (op_type.builtin_type == Variant::INT && cast_type.kind == GDScriptParser::DataType::ENUM) {
				mark_node_unsafe(p_cast);
				valid = true;
			} else if (op_type.kind == GDScriptParser::DataType::BUILTIN && cast_type.kind == GDScriptParser::DataType::BUILTIN) {
				valid = Variant::can_convert(op_type.builtin_type, cast_type.builtin_type);
			} else if (op_type.kind != GDScriptParser::DataType::BUILTIN && cast_type.kind != GDScriptParser::DataType::BUILTIN) {
				valid = is_type_compatible(cast_type, op_type) || is_type_compatible(op_type, cast_type);
			}
			if (!valid) {
				push_error(vformat(R"(Invalid cast. Cannot convert from "%s" to "%s".)", op_type.to_string(), cast_type.to_string()), p_cast->cast_type);
			}
		}
	}
}
void GDScriptAnalyzer::reduce_dictionary(GDScriptParser::DictionaryNode *p_dictionary) {