nicxvan
--- a/core/lib/Drupal/Core/Extension/Extension.php
+++ b/core/lib/Drupal/Core/Extension/Extension.php
        && $this->info[ExtensionLifecycle::LIFECYCLE_IDENTIFIER] === ExtensionLifecycle::OBSOLETE);
  }

+  /**
+   * Sets procedural value.
+   */
+  public function setProceduralScan(string $scan) {
+    $this->info[ExtensionHookStatus::PROCEDURAL_HOOKS] = $scan;
+  }
+
+  /**
+   * Checks if an extension should skip procedural hooks.
+   *
+   * @return string
+   *   FALSE if an extension has procedural hooks, TRUE otherwise.
--- a/core/lib/Drupal/Core/Extension/ExtensionDiscovery.php
+++ b/core/lib/Drupal/Core/Extension/ExtensionDiscovery.php
        $file = $fileinfo->openFile('r');
-        while (!$type && !$file->eof()) {
-          preg_match('@^type:\s*(\'|")?(\w+)\1?\s*(?:\#.*)?$@', $file->fgets(), $matches);
-          if (isset($matches[2])) {
-            $type = $matches[2];
+        while ((!$type || !$procedural_hooks) && !$file->eof()) {
+          $line = $file->fgets();
+
+          if (!$type) {
+            preg_match('@^type:\s*(\'|")?(\w+)\1?\s*(?:\#.*)?$@', $line, $matches);
+            if (isset($matches[2])) {
+              $type = $matches[2];
+            }
+          }
+
+          if (!$procedural_hooks) {
--- a/core/lib/Drupal/Core/Extension/ExtensionDiscovery.php
+++ b/core/lib/Drupal/Core/Extension/ExtensionDiscovery.php
      }

      $extension = new Extension($this->root, $extension_arguments['type'], $extension_arguments['pathname'], $extension_arguments['filename']);
+      $extension->setProceduralScan($extension_arguments['procedural_hooks']);
--- a/core/lib/Drupal/Core/Hook/HookCollectorPass.php
+++ b/core/lib/Drupal/Core/Hook/HookCollectorPass.php
   * @param $module_preg
   *   A regular expression matching every module, longer module names are
   *   matched first.
+   * @param $procedural_hook_status