Add product_name

Add product_name to array, as per new Woo files;

woocommerce/cart/cart.php

@@ -108,6 +108,7 @@ do_action( 'woocommerce_before_cart' ); ?>
 								'input_value'   => $cart_item['quantity'],
 								'max_value'     => $_product->get_max_purchase_quantity(),
 								'min_value'     => '0',
+								'product_name'  => $_product->get_name(),
 							), $_product, false );
 						}