### 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
bool all_is_constant = true;
	for (int i = 0; i < p_array->elements.size(); i++) {
		GDScriptParser::ExpressionNode *element = p_array->elements[i];
		if (element->type == GDScriptParser::Node::ARRAY) {
			const_fold_array(static_cast<GDScriptParser::ArrayNode *>(element));
		} else if (element->type == GDScriptParser::Node::DICTIONARY) {
			const_fold_dictionary(static_cast<GDScriptParser::DictionaryNode *>(element));
		}
		all_is_constant = all_is_constant && element->is_constant;
		if (!all_is_constant) {
			return;
		}
	}
	Array array;
	array.resize(p_array->elements.size());
	for (int i = 0; i < p_array->elements.size(); i++) {
		array[i] = p_array->elements[i]->reduced_value;
	}
	p_array->is_constant = true;
	p_array->reduced_value = array;
}
void GDScriptAnalyzer::const_fold_dictionary(GDScriptParser::DictionaryNode *p_dictionary) {