diff --git a/core/lib/Drupal/Core/Extension/InfoParserDynamic.php b/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
index bc11cb8e9c..e135ff2197 100644
--- a/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
+++ b/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
@@ -11,6 +11,9 @@
  */
 class InfoParserDynamic implements InfoParserInterface {
 
+  /**
+   * The earliest version of Drupal that supports the 'core_dependency' key.
+   */
   const FIRST_CORE_DEPENDENCY_SUPPORTED_VERSION = '8.7.7';
 
   /**
@@ -61,7 +64,7 @@ public function parse($filename) {
         throw new InfoParserException("Invalid 'core' value \"{$parsed_info['core']}\" in " . $filename);
       }
       if (isset($parsed_info['core_dependency'])) {
-        $supports_pre_core_dependency_version = $this->isConstraintSatisfiedByPreCoreDependencyCoreVersion($parsed_info['core_dependency']);
+        $supports_pre_core_dependency_version = static::isConstraintSatisfiedByPreCoreDependencyCoreVersion($parsed_info['core_dependency']);
         // If the 'core_dependency' constraint does not satisfy any Drupal 8
         // versions before 8.7.7 then 'core' cannot be set or it will
         // effectively support all versions of Drupal 8 because
@@ -131,7 +134,7 @@ protected function getRequiredKeys() {
    *   TRUE if the constraint is satisfied by a core version that does not
    *   support the 'core_dependency' key in info.yml files.
    */
-  protected function isConstraintSatisfiedByPreCoreDependencyCoreVersion($constraint) {
+  static protected function isConstraintSatisfiedByPreCoreDependencyCoreVersion($constraint) {
     static $evaluated_constraints = [];
     if (!isset($evaluated_constraints[$constraint])) {
       foreach (range(0, 7) as $minor) {
@@ -154,7 +157,6 @@ protected function isConstraintSatisfiedByPreCoreDependencyCoreVersion($constrai
                   return $evaluated_constraints[$constraint];
                 }
               }
-
             }
           }
         }
diff --git a/core/modules/system/tests/modules/update_test_semver_update_n/update_test_semver_update_n.install b/core/modules/system/tests/modules/update_test_semver_update_n/update_test_semver_update_n.install
index d00ff0cfe5..aacb595710 100644
--- a/core/modules/system/tests/modules/update_test_semver_update_n/update_test_semver_update_n.install
+++ b/core/modules/system/tests/modules/update_test_semver_update_n/update_test_semver_update_n.install
@@ -6,7 +6,7 @@
  */
 
 /**
- * Update 8002.
+ * Update 8001.
  */
 function update_test_semver_update_n_update_8001() {
   \Drupal::state()->set('update_test_semver_update_n_update_8001', 'Yes, I was run. Thanks for testing!');
diff --git a/core/modules/system/tests/src/Functional/System/ThemeTest.php b/core/modules/system/tests/src/Functional/System/ThemeTest.php
index 9d028b49d8..8c89f0c8a5 100644
--- a/core/modules/system/tests/src/Functional/System/ThemeTest.php
+++ b/core/modules/system/tests/src/Functional/System/ThemeTest.php
@@ -482,7 +482,7 @@ public function testThemeSettingsNoLogoNoFavicon() {
    *
    * @param string $theme_name
    *   Theme name to select element on page. This can be a partial name.
-   * @param $expected_text
+   * @param string $expected_text
    *   The expected incompatibility text.
    */
   private function assertThemeIncompatibleText($theme_name, $expected_text) {