diff --git a/core/lib/Drupal/Core/Access/RefinableDependentAccessInterface.php b/core/lib/Drupal/Core/Access/RefinableDependentAccessInterface.php
index 4e5f872302..bb024c987e 100644
--- a/core/lib/Drupal/Core/Access/RefinableDependentAccessInterface.php
+++ b/core/lib/Drupal/Core/Access/RefinableDependentAccessInterface.php
@@ -21,7 +21,7 @@
   public function setAccessDependency(AccessibleInterface $access_dependency);
 
   /**
-   * Merges an access dependency into the existing access dependency.
+   * Adds an access dependency into the existing access dependency.
    *
    * If no existing dependency is currently set this will set the dependency
    * will be set to the new value.
@@ -40,6 +40,6 @@ public function setAccessDependency(AccessibleInterface $access_dependency);
    *
    * @return $this
    */
-  public function mergeAccessDependency(AccessibleInterface $access_dependency);
+  public function addAccessDependency(AccessibleInterface $access_dependency);
 
 }
diff --git a/core/lib/Drupal/Core/Access/RefinableDependentAccessTrait.php b/core/lib/Drupal/Core/Access/RefinableDependentAccessTrait.php
index c008f5b86b..4826f57926 100644
--- a/core/lib/Drupal/Core/Access/RefinableDependentAccessTrait.php
+++ b/core/lib/Drupal/Core/Access/RefinableDependentAccessTrait.php
@@ -32,7 +32,7 @@ public function getAccessDependency() {
   /**
    * {@inheritdoc}
    */
-  public function mergeAccessDependency(AccessibleInterface $access_dependency) {
+  public function addAccessDependency(AccessibleInterface $access_dependency) {
     if (empty($this->accessDependency)) {
       $this->accessDependency = $access_dependency;
       return $this;
diff --git a/core/modules/block_content/tests/src/Functional/Update/BlockContentReusableUpdateTest.php b/core/modules/block_content/tests/src/Functional/Update/BlockContentReusableUpdateTest.php
index 5d82f6f904..4e8d99398b 100644
--- a/core/modules/block_content/tests/src/Functional/Update/BlockContentReusableUpdateTest.php
+++ b/core/modules/block_content/tests/src/Functional/Update/BlockContentReusableUpdateTest.php
@@ -9,6 +9,7 @@
  * Tests 'reusable' field related update functions for the Block Content module.
  *
  * @group Update
+ * @group legacy
  */
 class BlockContentReusableUpdateTest extends UpdatePathTestBase {
 
diff --git a/core/tests/Drupal/Tests/Core/Access/DependentAccessTest.php b/core/tests/Drupal/Tests/Core/Access/DependentAccessTest.php
index 86a98429d4..339e11f8d3 100644
--- a/core/tests/Drupal/Tests/Core/Access/DependentAccessTest.php
+++ b/core/tests/Drupal/Tests/Core/Access/DependentAccessTest.php
@@ -57,7 +57,7 @@ public function testSetAccessDependency($use_set_first) {
       $testRefinable->setAccessDependency($this->forbidden);
     }
     else {
-      $testRefinable->mergeAccessDependency($this->forbidden);
+      $testRefinable->addAccessDependency($this->forbidden);
     }
     $accessResult = $testRefinable->getAccessDependency()->access('view', $this->account, TRUE);
     $this->assertTrue($accessResult->isForbidden());
@@ -83,14 +83,14 @@ public function testMergeNonGroup($use_set_first) {
       $testRefinable->setAccessDependency($this->forbidden);
     }
     else {
-      $testRefinable->mergeAccessDependency($this->forbidden);
+      $testRefinable->addAccessDependency($this->forbidden);
     }
 
     $accessResult = $testRefinable->getAccessDependency()->access('view', $this->account, TRUE);
     $this->assertTrue($accessResult->isForbidden());
     $this->assertEquals('Because I said so', $accessResult->getReason());
 
-    $testRefinable->mergeAccessDependency($this->neutral);
+    $testRefinable->addAccessDependency($this->neutral);
     /** @var \Drupal\Core\Access\AccessGroupAnd $dependency */
     $dependency = $testRefinable->getAccessDependency();
     // Ensure the new dependency create a new AND group when merged.
@@ -118,10 +118,10 @@ public function testMergeGroup($use_set_first) {
       $testRefinable->setAccessDependency($orGroup);
     }
     else {
-      $testRefinable->mergeAccessDependency($orGroup);
+      $testRefinable->addAccessDependency($orGroup);
     }
 
-    $testRefinable->mergeAccessDependency($this->neutral);
+    $testRefinable->addAccessDependency($this->neutral);
     /** @var \Drupal\Core\Access\AccessGroupOr $dependency */
     $dependency = $testRefinable->getAccessDependency();