Update Tests_Paginate_Links for PHPUnit 4.2

[jeffstieler]

PHPUnit 4.2 deprecated assertTag. See ​https://github.com/sebastianbergmann/phpunit/wiki/Release-Announcement-for-PHPUnit-4.2.0

I've changed the test_paginate_links_base_value case to use DOMDocument instead.

An alternate solution could be to have WP_UnitTestCase inherit from ​PHPUnit_Framework_DOMTestCase.

[wonderboymusic]

In 29746:

assertTag() has been deprecated in PHPUnit 4.2. Rewrite some of the tests in Tests_Paginate_Links to use DOMDocument.

Props effstieler.
Fixes #29545.

[jeffstieler]

Thanks Scott!

Can we fix the "props"? I use a widget that pulls in core contributions based on that and it can't find me.

[nacin]

Replying to jeffstieler:

Thanks Scott!

Can we fix the "props"? I use a widget that pulls in core contributions based on that and it can't find me.

Sorry, commit messages can't be changed after the fact. Maybe just add a new rule. :)

[rmccue]

Replying to jeffstieler:

Can we fix the "props"? I use a widget that pulls in core contributions based on that and it can't find me.

Welcome to the club. ;)

[wonderboymusic]

In 29780:

In paginate_links(), ensure that query string args are propagated to the resulting paginated links.

Adds unit tests that use DOMDocument since assertTag is being deprecated - see #29545, [29746].

Props obenland, wonderboymusic.
Fixes #29636.

[johnbillion]

In 40447:

assertTag() has been deprecated in PHPUnit 4.2. Rewrite some of the tests in Tests_Paginate_Links to use DOMDocument.

See #29545.

Merges [29746] to the 4.0 branch.