Bug 65268 [projection] editor is missing collapse all action for code folding
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/FoldingActionGroup.java
fCollapseComments.update();
		}
	}
	
	/**
	 * Fills the menu with all folding actions.
	 * 
	 * @param manager the menu manager for the folding submenu
	 */
	public void fillMenu(IMenuManager manager) {
		if (isEnabled()) {
			update();
			manager.add(fToggle);
			manager.add(fExpandAll);
			manager.add(fExpand);
			manager.add(fCollapse);
			manager.add(fRestoreDefaults);
			manager.add(fCollapseMembers);
			manager.add(fCollapseComments);
		}
	}
	
	/*
	 * @see org.eclipse.ui.actions.ActionGroup#updateActionBars()
	 */
	public void updateActionBars() {
		update();
	}
}