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.


git-svn-id: https://develop.svn.wordpress.org/trunk@28516 602fd350-edb4-49c9-b593-d223f7449a82
Add missing access modifiers to methods in `WP_Dependencies` and `_WP_Dependency`.

See #27881, #22234.


git-svn-id: https://develop.svn.wordpress.org/trunk@28517 602fd350-edb4-49c9-b593-d223f7449a82
Add missing access modifiers to methods in `WP_Scripts` and `WP_Styles`.

See #27881, #22234.


git-svn-id: https://develop.svn.wordpress.org/trunk@28518 602fd350-edb4-49c9-b593-d223f7449a82
Add missing access modifiers to methods in `WP_Comment_Query`. Add a magic `__call()` method for BC.

See #27881, #22234.


git-svn-id: https://develop.svn.wordpress.org/trunk@28519 602fd350-edb4-49c9-b593-d223f7449a82