Add several missing "_deprecated_function()" calls

[ramiy]

I found 13 deprecated functions that don't use _deprecated_function().

We have to use the deprecated functions call to trigger an error when WP_DEBUG is true. It helps developers to catch and fix their code.

See the attached patch.

[ramiy]

It's important because I still see many plugins that use get_screen_icon() and screen_icon().

Many developers don't know that they use those deprecated function because those functions don't call _deprecated_function().

[ramiy]

By the way, each and every WordPress deprecated function uses _deprecated_function(). All, besides those 13 functions in the patch.

[ocean90]

I don't think we need to add them to functions which were previously used as callbacks. For the screen icon see [26537]. WP_Screen::render_screen_meta() is not a direct replacement for screen_meta(), it should be something like screen_options() or screen_layout() is using.

[ramiy]

Replying to ocean90:

I don't think we need to add them to functions which were previously used as callbacks. For the screen icon see [26537]. WP_Screen::render_screen_meta() is not a direct replacement for screen_meta(), it should be something like screen_options() or screen_layout() is using.

@ocean90, what about the other functions? The patch adds _deprecated_function() to 13 functions.