### Godot version

4.0 Beta10

### System information

Windows 10, Vulkan, GTX1060

### Issue description

`PropertyTweener`'s methods' return value are not discarded and effect the unary operator at next line.

In Editor:
![in_editor](https://user-images.githubusercontent.com/61624558/210715100-04bdf283-7954-4be3-94ca-338987b24c5b.png)


In cpp:
![in_cpp](https://user-images.githubusercontent.com/61624558/210715127-519f6d54-fc15-468f-9aca-ba7d387a5a7b.png)


### Steps to reproduce

Just run the Minimal reproduction project.

### Minimal reproduction project

[Bug Report.zip](https://github.com/godotengine/godot/files/10349829/Bug.Report.zip)

Error err = resolve_class_inheritance(p_class);
	if (err) {
		return err;
	}
	if (p_recursive) {
		for (int i = 0; i < p_class->members.size(); i++) {
			if (p_class->members[i].type == GDScriptParser::ClassNode::Member::CLASS) {
				err = resolve_class_inheritance(p_class->members[i].m_class, true);
				if (err) {
					return err;
				}
			}
		}
	}
	return OK;
}
GDScriptParser::DataType GDScriptAnalyzer::resolve_datatype(GDScriptParser::TypeNode *p_type) {
	GDScriptParser::DataType bad_type;
	bad_type.kind = GDScriptParser::DataType::VARIANT;
	bad_type.type_source = GDScriptParser::DataType::INFERRED;
	if (p_type == nullptr) {
		return bad_type;
	}
	if (p_type->get_datatype().is_resolving()) {
		push_error(R"(Could not resolve datatype: Cyclic reference.)", p_type);
		return bad_type;