Makes sure statusCode callbacks are ordered in the same way success and error...

Makes sure statusCode callbacks are ordered in the same way success and error callbacks are. Unit tests added.

src/ajax.js

@@ -427,10 +427,8 @@ jQuery.extend({
 				// Stored error
 				error,
 
-				// Keep track of statusCode callbacks
-				oldStatusCode = statusCode;
-
-			statusCode = undefined;
+				// To keep track of statusCode based callbacks
+				oldStatusCode;
 
 			// If successful, handle type chaining
 			if ( status >= 200 && status < 300 || status === 304 ) {
@@ -588,6 +586,8 @@ jQuery.extend({
 			}
 
 			// Status-dependent callbacks
+			oldStatusCode = statusCode;
+			statusCode = undefined;
 			jXHR.statusCode( oldStatusCode );
 
 			if ( s.global ) {

test/unit/ajax.js

@@ -1911,9 +1911,9 @@ test( "jQuery.ajax - Location object as url (#7531)", 1, function () {
 
 test( "jQuery.ajax - statusCode" , function() {
 
-	var count = 10;
+	var count = 12;
 
-	expect( 16 );
+	expect( 20 );
 	stop();
 
 	function countComplete() {
@@ -1975,8 +1975,35 @@ test( "jQuery.ajax - statusCode" , function() {
 			}
 		}).statusCode( createStatusCodes( "all (immediately with method)" , isSuccess ) );
 
-	});
+		var testString = "";
+
+		jQuery.ajax( url( uri ), {
+			success: function( a , b , jXHR ) {
+				ok( isSuccess , "success" );
+				var statusCode = {};
+				statusCode[ jXHR.status ] = function() {
+					testString += "B";
+				};
+				jXHR.statusCode( statusCode );
+				testString += "A";
+			},
+			error: function( jXHR ) {
+				ok( ! isSuccess , "error" );
+				var statusCode = {};
+				statusCode[ jXHR.status ] = function() {
+					testString += "B";
+				};
+				jXHR.statusCode( statusCode );
+				testString += "A";
+			},
+			complete: function() {
+				strictEqual( testString , "AB" , "Test statusCode callbacks are ordered like " +
+						( isSuccess ? "success" :  "error" ) + " callbacks" );
+				countComplete();
+			}
+		} );
 
+	});
 });
 
 test("jQuery.ajax - active counter", function() {