In `get_terms_to_edit()`, call `get_object_term_cache()` before priming cache with `wp_get_object_terms()`.

In `get_inline_data()`, do the same.

On list table screens with taxonomies in the admin, this dramatically reduces the number of database queries (3x less). Even more so with a persistent object cache (5x less).

Props johnbillion, jeffstieler, wonderboymusic.
Fixes #18968.


Built from https://develop.svn.wordpress.org/trunk@28561


git-svn-id: http://core.svn.wordpress.org/trunk@28387 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When adding queries to `tax_query`: if the query's `field` is `term_taxonomy_id`, don't require `taxonomy` to be specified. In `WP_Tax_Query::transform_query()`, `$query['taxonomy']` is never checked for the 'term_taxonomy_id' `case` because 'term_taxonomy_id' is the primary key being looked up.

Adds unit tests.

Props helen.
Fixes #25284.


Built from https://develop.svn.wordpress.org/trunk@28562


git-svn-id: http://core.svn.wordpress.org/trunk@28388 1a063a9b-81f0-0310-95a4-ce76da25c4cd