### Godot version

v4.0.beta.custom_build [1d14c054a]

### System information

Kubuntu 22.10

### Issue description

Regression in master (in beta 10 the following script works correctly).

### Steps to reproduce

```gdscript
@tool
extends EditorScript

func wait(time: float) -> void:
    await get_editor_interface().get_tree().create_timer(time).timeout

func _run() -> void:
    reference()
    # Error: Cannot get return value of call to "wait()" because it returns "void".
    await wait(1.0)
    print("Test")
    unreference()
```

### Minimal reproduction project

N/A
int ret;
		if (!name_map.has(p_identifier)) {
			ret = name_map.size();
			name_map[p_identifier] = ret;
		} else {
			ret = name_map[p_identifier];
		}
		return ret;
	}
	int get_constant_pos(const Variant &p_constant) {
		if (constant_map.has(p_constant)) {
			return constant_map[p_constant];
		}
		int pos = constant_map.size();
		constant_map[p_constant] = pos;
		return pos;
	}
	int get_operation_pos(const Variant::ValidatedOperatorEvaluator p_operation) {
		if (operator_func_map.has(p_operation)) {
			return operator_func_map[p_operation];
		}
		int pos = operator_func_map.size();
		operator_func_map[p_operation] = pos;
		return pos;
	}
	int get_setter_pos(const Variant::ValidatedSetter p_setter) {