Unnecessary use of global in admin-bar.php

[andriijas]

In admin-bar.php line 78 function wp_admin_bar_my_account_menu takes $wp_admin_bar as argument (as seen in line 60) and should use that in favor of global.

That goes for the other wp_admin_bar_* functions that adds menus to the admin bar in the same file as well.

[scribu]

Since we're on PHP5, we don't need to pass by reference anymore.

[solarissmoke]

Patch refreshed

[ryan]

(In [17658]) Used passed admin bar object instead of global. Props solarissmoke. fixes #16540