fix: skip test_exceptions where proxy handler throws aren't reported

Author: bavulapati

implementors/node/features.js

@@ -31,4 +31,10 @@ globalThis.runtimeFeatures = {
     major > 25 ||
     (major === 25 && minor >= 4) ||
     (major === 24 && (minor > 13 || (minor === 13 && patch >= 1))),
+
+  // Object APIs report a throwing proxy handler as napi_pending_exception only
+  // since Node.js v22.0.0 (nodejs/node@52fcf14258b). It was not backported to
+  // v20.x, where the exception is left pending but the call reports another
+  // status, so the throw escapes the addon instead.
+  proxyHandlerExceptions: major >= 22,
 };

tests/js-native-api/test_object/test_exceptions.js

@@ -1,3 +1,10 @@
+// A runtime whose object APIs don't surface a throwing proxy handler as a
+// pending exception leaves the throw to escape the addon entirely, so there is
+// nothing meaningful to assert there.
+if (!runtimeFeatures.proxyHandlerExceptions) {
+  skipTest();
+}
+
 const { testExceptions } = loadAddon('test_exceptions');
 
 function throws() {