task: #3578630 Check that services definitions match their argument count

          $aliases[$id] = substr($service, 1);

        }

        elseif (isset($service['class']) && class_exists($service['class'])) {

          // Check that the number of arguments matches the constructor.

          if (isset($service['arguments'])) {

            $constructor = new \ReflectionMethod($service['class'], '__construct');

            $this->assertLessThanOrEqual($constructor->getNumberOfParameters(), count($service['arguments']), sprintf('%s (%s): %d arguments defined, but constructor only accepts %d', $id, $service['class'], count($service['arguments']), $constructor->getNumberOfParameters()));

          }

          // Ignore services named by their own class.

          if ($id === $service['class']) {

            continue;