src: accept single argument in getProxyDetails

This makes sure this function stays backwards compatible in case
it's accessed through the binding directly.

Refs: #29947 (comment)

PR-URL: #30858
Refs: #30767
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

src/node_util.cc

@@ -91,11 +91,12 @@ static void GetProxyDetails(const FunctionCallbackInfo<Value>& args) {
   if (!args[0]->IsProxy())
     return;
 
-  CHECK(args[1]->IsBoolean());
-
   Local<Proxy> proxy = args[0].As<Proxy>();
 
-  if (args[1]->IsTrue()) {
+  // TODO(BridgeAR): Remove the length check as soon as we prohibit access to
+  // the util binding layer. It's accessed in the wild and `esm` would break in
+  // case the check is removed.
+  if (args.Length() == 1 || args[1]->IsTrue()) {
     Local<Value> ret[] = {
       proxy->GetTarget(),
       proxy->GetHandler()

test/parallel/test-util-inspect-proxy.js

@@ -50,6 +50,10 @@ let details = processUtil.getProxyDetails(proxyObj, true);
 assert.strictEqual(target, details[0]);
 assert.strictEqual(handler, details[1]);
 
+details = processUtil.getProxyDetails(proxyObj);
+assert.strictEqual(target, details[0]);
+assert.strictEqual(handler, details[1]);
+
 details = processUtil.getProxyDetails(proxyObj, false);
 assert.strictEqual(target, details);