entityreference_autocomplete_access_callback in core/modules/entityreference/entityreference.module

Menu Access callback for the autocomplete widget.

node_autocomplete_access in core/modules/node/node.module

Access callback for the node autocomplete menu item.

path_autocomplete_access in core/modules/system/system.module

Access callback for the path autocomplete menu item.

taxonomy_autocomplete_access in core/modules/taxonomy/taxonomy.module

Access callback for the taxonomy autocomplete menu item.

user_autocomplete_access in core/modules/user/user.module

Access callback for the user autocomplete menu item.

views_ui_autocomplete_tag_access in core/modules/views_ui/views_ui.module

Access callback for the Views UI tag autocomplete menu item.