* More complete test coverage for publicly available methods of WP_Meta_Query.
* Move tests that rely on WP_Query (via the meta_query parameter) to tests/post/query.php.
* Better coverage for basic use cases of 'meta_query', including all values of 'compare' and default values of 'key', 'value', and 'compare'.
* Improve performance for tests that run WP_Query, by retrieving only post IDs and not prefetching postmeta and post terms.
* Add 'public' visibility keywords to test methods.
* Whitespace cleanup.
Fixes#29560
git-svn-id: https://develop.svn.wordpress.org/trunk@29799 602fd350-edb4-49c9-b593-d223f7449a82
1f6fd2c926