### 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)

GDScriptParser::DataType result = p_meta_type;
	result.is_meta_type = false;
	result.is_constant = false;
	if (p_meta_type.kind == GDScriptParser::DataType::ENUM) {
		result.builtin_type = Variant::INT;
	}
	return result;
}
GDScriptParser::DataType GDScriptAnalyzer::type_from_property(const PropertyInfo &p_property) const {
	GDScriptParser::DataType result;
	result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
	if (p_property.type == Variant::NIL && (p_property.usage & PROPERTY_USAGE_NIL_IS_VARIANT)) {
		
		result.kind = GDScriptParser::DataType::VARIANT;
		return result;
	}
	result.builtin_type = p_property.type;
	if (p_property.type == Variant::OBJECT) {
		result.kind = GDScriptParser::DataType::NATIVE;
		result.native_type = p_property.class_name == StringName() ? SNAME("Object") : p_property.class_name;
	} else {
		result.kind = GDScriptParser::DataType::BUILTIN;
		result.builtin_type = p_property.type;
		if (p_property.type == Variant::ARRAY && p_property.hint == PROPERTY_HINT_ARRAY_TYPE) {