Tests: Replace `assertEquals()` with `assertSameSets()` in text widget tests.

This ensures that not only the array values being compared are equal, but also that their type is the same.

Going forward, stricter type checking by using `assertSame()`, `assertSameSets()`, or `assertSameSetsWithIndex()` should generally be preferred, to make the tests more reliable.

Follow-up to [40631], [41132], [48939], [51137].

See #52482, #52625.
Built from https://develop.svn.wordpress.org/trunk@51220


git-svn-id: http://core.svn.wordpress.org/trunk@50829 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-beta3-51219';
+$wp_version = '5.8-beta3-51220';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.