public function testReturnValueStatement()
{
$this->assertParsedAs(function () {
return 1;
}, [O\Expression::returnExpression(O\Expression::value(1))]);
$this->assertParsedAs(function () {
return null;
}, [O\Expression::returnExpression(O\Expression::constant('null'))]);
$this->assertParsedAs(function () {
return '';
}, [O\Expression::returnExpression(O\Expression::value(''))]);
}