ACP2E-1840: fix failing static and unit tests

Author: alzota

app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Page/Query/PageIdsListTest.php

@@ -81,11 +81,11 @@ public function testExecute($blockEntityIds, $pageEntityIds, $blockIdentifiers)
             ->with()
             ->willReturn($this->connectionMock);
 
-        $this->pageIdsList = new PageIdsList(
+        $pageIdsList = new PageIdsList(
             $this->resourceMock
         );
 
-        $this->assertSame($pageEntityIds, $this->pageIdsList->execute($blockEntityIds));
+        $this->assertSame($pageEntityIds, $pageIdsList->execute($blockEntityIds));
     }
 
     /**