Fix assertArrayEquals() calls with bogus 3rd parameter

Fix assertArrayEquals() calls with bogus 3rd parameter

This issue came up in I8a49143, see
https://integration.wikimedia.org/ci/job/mediawiki-quibble-vendor-postgres-php70-docker/2453/console
The third parameter of assertArrayEquals() is called $ordered and is
meant to take the order of elements into account. Providing a string sets
this to true. The SQL query in ChangesListSpecialPageTest seems to behave
a bit random in Postgres and does not always return the elements in the
same order. This is fine. It's just the assertion that was to strict, by
accident.

I found a few more instances of the same issue with a regular expression.
In most cases I intentionally changed it to assertSame() because the order
of elements is actually guaranteed by the code, and needs to be (e.g.
mixing width and height of an image would be fatal).

Change-Id: Ice66cab873a7271d55809a486ce28cf637e43e33