Nobody ever used GTK_STOCK_FILE?

["Pavel A. da Mek" <a da_mek0 ufoni cz>]

I wonder why

GTK_STOCK_COLOR_PICKER
GTK_STOCK_DIALOG_AUTHENTICATION
GTK_STOCK_DIRECTORY
GTK_STOCK_DND
GTK_STOCK_DND_MULTIPLE
GTK_STOCK_FILE
GTK_STOCK_MISSING_IMAGE

are not included in the array
GtkStockItem builtin_items
in the source file
gtkstock.c

How they are expected to be used when they cannot be found by 
gtk_stock_lookup?

Should not be added at least
 { GTK_STOCK_FILE, NC_("Stock label", "_File"), 0, 0, 
GETTEXT_PACKAGE },
and maybe also
 { GTK_STOCK_DIRECTORY, NC_("Stock label", "Folder"), 0, 0, 
GETTEXT_PACKAGE },
?