"Item" descriptions for blocks

It would be nice to be able to have descriptions for blocks (when they are items in the inventory).

It is possible to implement that in the exact same way as for item descriptions:

@Override
	public void addInformation(ItemStack itemstack, World world, List<String> tooltip, ITooltipFlag flagIn)
	{
		tooltip.add("");
	}

Another idea (maybe I should open a separate ticket) is to allow translation strings in these descriptions, which could be done with:

import net.minecraft.client.resources.I18n;

@Override
	public void addInformation(ItemStack itemstack, World world, List<String> tooltip, ITooltipFlag flagIn)
	{
		tooltip.add(I18n.format("foo.bar.example"));
	}