url: simplify loop in parser

PR-URL: #18468
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

lib/url.js

@@ -880,7 +880,7 @@ Url.prototype.resolveObject = function resolveObject(relative) {
 
   // if the path is allowed to go above the root, restore leading ..s
   if (!mustEndAbs && !removeAllDots) {
-    for (; up--; up) {
+    while (up--) {
       srcPath.unshift('..');
     }
   }