Use the element name menuitem for GtkMenuItem, GtkCheckMenuItem
and GtkRadioMenuItem. GtkSeparatorMenuItem gets the name separator.
Add a subnode with name arrow if a submenu is attached.
Give the radio and check menu items a subnode with name check or
radio.
We've recently a number of classes wholly. For these cases,
move the headers and sources to gtk/deprecated/ and adjust
Makefiles and includes accordingly.
Affected classes:
GtkAction
GtkActionGroup
GtkActivatable
GtkIconFactory
GtkImageMenuItem
GtkRadioAction
GtkRecentAction
GtkStock
GtkToggleAction
GtkUIManager
This is needed by GtkTreeMenu to ensure that child menu items
reserve space for the submenu indicator even if they dont have
submenus... in this way we ensure the same size of all cell
areas in the menu items at allocation/request time.