Docs: Add examples of possible names for various hooks whose name contains a dynamic portion.

This provides greater discoverability of such hooks in search results on the Code Reference site as well as increased clarity when reading the source.

See #50734, #52628


git-svn-id: https://develop.svn.wordpress.org/trunk@50505 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp-theme.php

@@ -1269,6 +1269,12 @@ final class WP_Theme implements ArrayAccess {
 		 *
 		 * The dynamic portion of the hook name, `$post_type`, refers to the post type.
 		 *
+		 * Possible hook names include:
+		 *
+		 *  - `theme_post_templates`
+		 *  - `theme_page_templates`
+		 *  - `theme_attachment_templates`
+		 *
 		 * @since 3.9.0
 		 * @since 4.4.0 Converted to allow complete control over the `$page_templates` array.
 		 * @since 4.7.0 Added the `$post_type` parameter.