wp_category_checklist should have name parameter

[takien]

I found wp_category_checklist is useful for creating my plugin/theme settings options. Unfortunately, it's currently don't have name parameter, the name is statically defined as post_category in the Walker_Category_Checklist default walker.

wp_category_checklist( $post_id = 0, $descendants_and_self = 0, $selected_cats = false, $popular_cats = false, $walker = null, $checked_ontop = true )

where it should be something like

wp_category_checklist( $post_id = 0, $descendants_and_self = 0, $selected_cats = false, $popular_cats = false, $walker = null, $checked_ontop = true, $name='post_category' )

So we don't need to create a new walker just to change the name.
Thank you.

wp_category_checklist() should be deprecated. It's just a wrapper for wp_terms_checklist() at this point.

Instead, we should add the parameter directly to wp_terms_checklist() and make it a template tag: #19556