Update to Drupal 8.0.2. For more information, see https://www.drupal.org/drupal-8.0.2-release-notes

core/lib/Drupal/Core/Database/Connection.php

@@ -90,7 +90,7 @@ abstract class Connection {
   /**
    * An index used to generate unique temporary table names.
    *
-   * @var integer
+   * @var int
    */
   protected $temporaryNameIndex = 0;
 

core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php

@@ -39,7 +39,7 @@ class Schema extends DatabaseSchema {
    * Value will usually be set to a 63 chars limit but PostgreSQL allows
    * to higher this value before compiling, so we need to check for that.
    *
-   * @var integer
+   * @var int
    */
   protected $maxIdentifierLength;