Adds unit test to show order of parameters in the load callback are off for...

Adds unit test to show order of parameters in the load callback are off for errors since the rewrite (this test works in master).

test/unit/ajax.js

@@ -1275,6 +1275,48 @@ asyncTest("load() - data specified in ajaxSettings is merged in (#10524)", 1, fu
 	});
 });
 
+asyncTest("load() - callbacks get the correct parameters", 8, function() {
+	var slice = [].slice,
+		completeArgs = {};
+
+	jQuery.ajaxSetup({
+		success: function( _, status, jqXHR ) {
+			completeArgs[ this.url ] = [ jqXHR.responseText, status, jqXHR ];
+		},
+		error: function( jqXHR, status ) {
+			completeArgs[ this.url ] = [ jqXHR.responseText, status, jqXHR ];
+		}
+	});
+
+	jQuery.when.apply( jQuery, jQuery.map([
+		{
+			type: "success",
+			url: "data/echoQuery.php?arg=pop"
+		},
+		{
+			type: "error",
+			url: "data/404.php"
+		}
+	], function( options ) {
+		return jQuery.Deferred(function( defer ) {
+			jQuery("#foo").load( options.url, function() {
+				var args = arguments;
+				strictEqual( completeArgs[ options.url ].length, args.length, "same number of arguments (" + options.type + ")" );
+				jQuery.each( completeArgs[ options.url ], function( i, value ) {
+					strictEqual( args[ i ], value, "argument #" + i + " is the same (" + options.type + ")" );
+				});
+				defer.resolve();
+			});
+		});
+	}) ).always(function() {
+		jQuery.ajaxSetup({
+			success: null,
+			error: null
+		});
+		start();
+	});
+});
+
 test("jQuery.get(String, Function) - data in ajaxSettings (#8277)", function() {
 	expect(1);
 	stop();