### 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)

case GDScriptParser::PatternNode::PT_DICTIONARY:
			for (int i = 0; i < p_match_pattern->dictionary.size(); i++) {
				if (p_match_pattern->dictionary[i].key) {
					reduce_expression(p_match_pattern->dictionary[i].key);
					if (!p_match_pattern->dictionary[i].key->is_constant) {
						push_error(R"(Expression in dictionary pattern key must be a constant.)", p_match_pattern->dictionary[i].key);
					}
				}
				if (p_match_pattern->dictionary[i].value_pattern) {
					resolve_match_pattern(p_match_pattern->dictionary[i].value_pattern, nullptr);
					decide_suite_type(p_match_pattern, p_match_pattern->dictionary[i].value_pattern);
				}
			}
			result = p_match_pattern->get_datatype();
			break;
		case GDScriptParser::PatternNode::PT_WILDCARD:
		case GDScriptParser::PatternNode::PT_REST:
			result.kind = GDScriptParser::DataType::VARIANT;
			break;
	}
	p_match_pattern->set_datatype(result);
}
void GDScriptAnalyzer::resolve_return(GDScriptParser::ReturnNode *p_return) {
	GDScriptParser::DataType result;
	GDScriptParser::DataType expected_type;
	bool has_expected_type = parser->current_function != nullptr;
	if (has_expected_type) {
		expected_type = parser->current_function->get_datatype();
	}
	if (p_return->return_value != nullptr) {