url: simplify native URL object construction

Co-authored-by: Joyee Cheung <joyeec9h3@gmail.com>

PR-URL: #24495
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

lib/internal/url.js

@@ -1369,11 +1369,6 @@ function toPathIfFileURL(fileURLOrPath) {
   return fileURLToPath(fileURLOrPath);
 }
 
-function NativeURL(ctx) {
-  this[context] = ctx;
-}
-NativeURL.prototype = URL.prototype;
-
 function constructUrl(flags, protocol, username, password,
                       host, port, path, query, fragment) {
   var ctx = new URLContext();
@@ -1386,10 +1381,13 @@ function constructUrl(flags, protocol, username, password,
   ctx.query = query;
   ctx.fragment = fragment;
   ctx.host = host;
-  const url = new NativeURL(ctx);
-  url[searchParams] = new URLSearchParams();
-  url[searchParams][context] = url;
-  initSearchParams(url[searchParams], query);
+
+  const url = Object.create(URL.prototype);
+  url[context] = ctx;
+  const params = new URLSearchParams();
+  url[searchParams] = params;
+  params[context] = url;
+  initSearchParams(params, query);
   return url;
 }
 setURLConstructor(constructUrl);