Add missing access modifiers to methods in `wp_xmlrpc_server`. Add a magic `__call()` method for BC.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28515


git-svn-id: http://core.svn.wordpress.org/trunk@28341 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing access modifiers to methods in `WP` and `WP_MatchesMapRegex`. Add magic `__call()` and `__get()` methods to `WP_MatchesMapRegex` for BC.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28516


git-svn-id: http://core.svn.wordpress.org/trunk@28342 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing access modifiers to methods in `WP_Dependencies` and `_WP_Dependency`.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28517


git-svn-id: http://core.svn.wordpress.org/trunk@28343 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing access modifiers to methods in `WP_Scripts` and `WP_Styles`.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28518


git-svn-id: http://core.svn.wordpress.org/trunk@28344 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing access modifiers to methods in `WP_Comment_Query`. Add a magic `__call()` method for BC.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28519


git-svn-id: http://core.svn.wordpress.org/trunk@28345 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix fatal error in unit test.

See #27881.

Built from https://develop.svn.wordpress.org/trunk@28520


git-svn-id: http://core.svn.wordpress.org/trunk@28346 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Some classes with `__get()` method also need `__set()`.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28521


git-svn-id: http://core.svn.wordpress.org/trunk@28347 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing access modifiers to methods in `WP_Meta_Query`.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28522


git-svn-id: http://core.svn.wordpress.org/trunk@28348 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add missing access modifiers to methods in `WP_Query`. Add magic methods for `__get()`, `__set()`, `__isset()`, `__unset()`, and `__call()`.

Add unit test for magic methods.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28523


git-svn-id: http://core.svn.wordpress.org/trunk@28349 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Classes that have `__set()` also need `__isset()` and `__unset()`.

See #27881, #22234.

Built from https://develop.svn.wordpress.org/trunk@28524


git-svn-id: http://core.svn.wordpress.org/trunk@28350 1a063a9b-81f0-0310-95a4-ce76da25c4cd