system_requirements() missing extension dependency check calls themes modules

system_requirements() is 1556 lines long so it's not immediately obvious which part this is referring to. If I've interpreted this correctly it's this part that needs updating:

// Check the module's required modules.
/** @var \Drupal\Core\Extension\Dependency $requirement */
foreach ($file->requires as $requirement) {
  $required_module = $requirement->getName();
  // Check if the module exists.
  if (!isset($files[$required_module])) {
    $requirements["$extension_name-$required_module"] = [
      'title' => t('Unresolved dependency'),
      'description' => t('@name requires this module.', ['@name' => $name]),
      'value' => t('@required_name (Missing)', ['@required_name' => $required_module]),
      'severity' => REQUIREMENT_ERROR,
    ];
    continue;
  }
  // Check for an incompatible version.
  $required_file = $files[$required_module];
  $required_name = $required_file->info['name'];
  // Remove CORE_COMPATIBILITY- only from the start of the string.
  $version = preg_replace('/^(' . \Drupal::CORE_COMPATIBILITY . '\-)/', '', $required_file->info['version'] ?? '');
  if (!$requirement->isCompatible($version)) {
    $requirements["$extension_name-$required_module"] = [
      'title' => t('Unresolved dependency'),
      'description' => t('@name requires this module and version. Currently using @required_name version @version', ['@name' => $name, '@required_name' => $required_name, '@version' => $version]),
      'value' => t('@required_name (Version @compatibility required)', ['@required_name' => $required_name, '@compatibility' => $requirement->getConstraintString()]),
      'severity' => REQUIREMENT_ERROR,
    ];
    continue;
  }
}

Let's postpone on 📌 [pp-3] Split up and refactor system_requirements() into OOP hooks Active

📌 [pp-3] Split up and refactor system_requirements() into OOP hooks Active is in

I think the original 2 was a mistake