Pass all updated meta IDs to filters in `update_metadata()`.

Props wonderboymusic.
Fixes #11683.
Built from https://develop.svn.wordpress.org/trunk@30140


git-svn-id: http://core.svn.wordpress.org/trunk@30140 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Allow resource_type to be specified in `get_ancestors()`.

Being explicit about resource type (taxonomy vs post_type) allows for the
proper resolution of conflicts when a taxonomy and post_type share a slug.

Props filosofo.
Fixes #15029.
Built from https://develop.svn.wordpress.org/trunk@30141


git-svn-id: http://core.svn.wordpress.org/trunk@30141 1a063a9b-81f0-0310-95a4-ce76da25c4cd