### 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
GDScriptParser::ClassNode *base_class = base.class_type;
	
	while (base_class != nullptr) {
		if (base_class->identifier && base_class->identifier->name == name) {
			p_identifier->set_datatype(base_class->get_datatype());
			return;
		}
		if (base_class->has_member(name)) {
			resolve_class_member(base_class, name, p_identifier);
			GDScriptParser::ClassNode::Member member = base_class->get_member(name);
			p_identifier->set_datatype(member.get_datatype());
			switch (member.type) {
				case GDScriptParser::ClassNode::Member::CONSTANT:
					p_identifier->is_constant = true;
					p_identifier->reduced_value = member.constant->initializer->reduced_value;
					p_identifier->source = GDScriptParser::IdentifierNode::MEMBER_CONSTANT;
					p_identifier->constant_source = member.constant;
					break;
				case GDScriptParser::ClassNode::Member::ENUM_VALUE:
					p_identifier->is_constant = true;
					p_identifier->reduced_value = member.enum_value.value;
					p_identifier->source = GDScriptParser::IdentifierNode::MEMBER_CONSTANT;
					break;
				case GDScriptParser::ClassNode::Member::ENUM:
					p_identifier->is_constant = true;
					p_identifier->reduced_value = member.m_enum->dictionary;
					p_identifier->source = GDScriptParser::IdentifierNode::MEMBER_CONSTANT;
					break;
				case GDScriptParser::ClassNode::Member::VARIABLE:
					p_identifier->source = GDScriptParser::IdentifierNode::MEMBER_VARIABLE;