TAB_BAR_ITEM_HELP 9140 src/keyboard.c         set_prop_tab_bar (TAB_BAR_ITEM_HELP, value);
TAB_BAR_ITEM_HELP 14880 src/xdisp.c      help_echo_string = AREF (f->tab_bar_items, prop_idx + TAB_BAR_ITEM_HELP);
TAB_BAR_ITEM_HELP 35473 src/xdisp.c    				   + TAB_BAR_ITEM_HELP);