### 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)

if (GDScriptLanguage::get_singleton()->has_any_global_constant(name)) {
		Variant constant = GDScriptLanguage::get_singleton()->get_any_global_constant(name);
		p_identifier->set_datatype(type_from_variant(constant, p_identifier));
		p_identifier->is_constant = true;
		p_identifier->reduced_value = constant;
		return;
	}
	
	
	if (GDScriptUtilityFunctions::function_exists(name)) {
		push_error(vformat(R"(Built-in function "%s" cannot be used as an identifier.)", name), p_identifier);
	} else {
		push_error(vformat(R"(Identifier "%s" not declared in the current scope.)", name), p_identifier);
	}
	GDScriptParser::DataType dummy;
	dummy.kind = GDScriptParser::DataType::VARIANT;
	p_identifier->set_datatype(dummy); 
}
void GDScriptAnalyzer::reduce_lambda(GDScriptParser::LambdaNode *p_lambda) {
	
	GDScriptParser::DataType lambda_type;
	lambda_type.type_source = GDScriptParser::DataType::ANNOTATED_INFERRED;
	lambda_type.kind = GDScriptParser::DataType::BUILTIN;
	lambda_type.builtin_type = Variant::CALLABLE;
	p_lambda->set_datatype(lambda_type);
	if (p_lambda->function == nullptr) {
		return;
	}
	lambda_stack.push_back(p_lambda);
	resolve_function_signature(p_lambda->function, p_lambda, true);