Fix filter() function parameter in jquery externs

Submitted upstream: https://github.com/google/closure-compiler/pull/672

externs/jquery-1.9.js

@@ -804,8 +804,9 @@ jQuery.prototype.fadeTo = function(duration, opacity, arg3, callback) {};
 jQuery.prototype.fadeToggle = function(duration, easing, callback) {};
 
 /**
- * @param {(jQuerySelector|function(number)|Element|jQuery)} arg1
+ * @param {(jQuerySelector|function(number,Element)|Element|jQuery)} arg1
  * @return {!jQuery}
+ * @see http://api.jquery.com/filter/
  */
 jQuery.prototype.filter = function(arg1) {};