Revert "url: make the context non-enumerable"

This reverts commit 5e1bf05, as it
causes major performance regressions during object construction.
Refs: #24218
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>

Author: TimothyGu

lib/internal/url.js

@@ -246,14 +246,7 @@ function onParseError(flags, input) {
 // Reused by URL constructor and URL#href setter.
 functionparse(url,input,base){
 constbase_context=base ? base[context] : undefined;
-// In the URL#href setter
-if(!url[context]){
-Object.defineProperty(url,context,{
-enumerable: false,
-configurable: false,
-value: newURLContext()
-});
-}
+url[context]=newURLContext();
 _parse(input.trim(),-1,base_context,undefined,
 onParseComplete.bind(url),onParseError);
 }
@@ -1381,11 +1374,7 @@ function toPathIfFileURL(fileURLOrPath) {
 }
 
 functionNativeURL(ctx){
-Object.defineProperty(this,context,{
-enumerable: false,
-configurable: false,
-value: ctx
-});
+this[context]=ctx;
 }
 NativeURL.prototype=URL.prototype;