JSDoc takes it structural data from `@namespace`, `@lends` and `@memberOf`. This change fixes these tags for all JavaScript files in the wp-admin folder.
* Add jsdoc configuration to parse wp-admin/js files. Use `jsdoc -c jsdoc.conf.json` to generate JSDoc.
* Define all used namespaces using `@namespace`.
* Define each usage of the extend function as a prototype assignment using `@lends`.
* Add `@alias` if JSDoc cannot detect the correct name automatically.
This has previously been corrected for all `wp-includes` JavaScript files: [41351].
Props herregroen.
Fixes#42485.
git-svn-id: https://develop.svn.wordpress.org/trunk@42403 602fd350-edb4-49c9-b593-d223f7449a82
Anton Timmermans
Adam Silverstein