GraphQL\Tests\Validator\UniqueOperationNamesTest::duplicateOp PHP Method

    private function duplicateOp($opName, $l1, $c1, $l2, $c2)
    {
        return FormattedError::create(UniqueOperationNames::duplicateOperationNameMessage($opName), [new SourceLocation($l1, $c1), new SourceLocation($l2, $c2)]);
    }