### 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)

public:
	_FORCE_INLINE_ static String do_mod(const String &s, const T &p_value, bool *r_valid) {
		Array values;
		values.push_back(p_value);
		String a = s.sprintf(values, r_valid);
		if (r_valid) {
			*r_valid = !*r_valid;
		}
		return a;
	}
	static void evaluate(const Variant &p_left, const Variant &p_right, Variant *r_ret, bool &r_valid) {
		*r_ret = do_mod(*VariantGetInternalPtr<S>::get_ptr(&p_left), *VariantGetInternalPtr<T>::get_ptr(&p_right), &r_valid);
	}
	static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) {
		bool valid = true;
		String result = do_mod(*VariantGetInternalPtr<S>::get_ptr(left), *VariantGetInternalPtr<T>::get_ptr(right), &valid);
		ERR_FAIL_COND_MSG(!valid, result);
		*VariantGetInternalPtr<String>::get_ptr(r_ret) = result;
	}
	static void ptr_evaluate(const void *left, const void *right, void *r_ret) {
		PtrToArg<String>::encode(do_mod(PtrToArg<S>::convert(left), PtrToArg<T>::convert(right), nullptr), r_ret);
	}
	static Variant::Type get_return_type() { return Variant::STRING; }
};
template <Variant::Operator op, Variant::Type type_left, Variant::Type type_right>
class OperatorEvaluatorAlwaysTrue {