### 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)

expr = sub->base;
						}
					}
					if (!expr || expr->type != GDScriptParser::Node::IDENTIFIER) {
						push_error(R"(Expression in match pattern must be a constant expression, an identifier, or an attribute access ("A.B").)", expr);
					}
				}
			}
			break;
		case GDScriptParser::PatternNode::PT_BIND:
			if (p_match_test != nullptr) {
				result = p_match_test->get_datatype();
			} else {
				result.kind = GDScriptParser::DataType::VARIANT;
			}
			p_match_pattern->bind->set_datatype(result);
#ifdef DEBUG_ENABLED
			is_shadowing(p_match_pattern->bind, "pattern bind");
			if (p_match_pattern->bind->usages == 0 && !String(p_match_pattern->bind->name).begins_with("_")) {
				parser->push_warning(p_match_pattern->bind, GDScriptWarning::UNUSED_VARIABLE, p_match_pattern->bind->name);
			}
#endif
			break;
		case GDScriptParser::PatternNode::PT_ARRAY:
			for (int i = 0; i < p_match_pattern->array.size(); i++) {
				resolve_match_pattern(p_match_pattern->array[i], nullptr);
				decide_suite_type(p_match_pattern, p_match_pattern->array[i]);
			}
			result = p_match_pattern->get_datatype();
			break;