Take Symbol-keyed properties into account in Object.freeze and friends

src/js/v8natives.js

Index: src/js/v8natives.js
diff --git a/src/js/v8natives.js b/src/js/v8natives.js
index 34c35031b2601dd4c1ef614c877668d307502569..fa1d72a23786a73fed398bfa334802d797972b40 100644
--- a/src/js/v8natives.js
+++ b/src/js/v8natives.js
@@ -1140,7 +1140,7 @@ function ObjectSealJS(obj) {
     if (isProxy) {
       ProxyFix(obj);
     }
-    var names = ObjectGetOwnPropertyNames(obj);
+    var names = OwnPropertyKeys(obj);
     for (var i = 0; i < names.length; i++) {
       var name = names[i];
       var desc = GetOwnPropertyJS(obj, name);
@@ -1170,7 +1170,7 @@ function ObjectFreezeJS(obj) {
     if (isProxy) {
       ProxyFix(obj);
     }
-    var names = ObjectGetOwnPropertyNames(obj);
+    var names = OwnPropertyKeys(obj);
     for (var i = 0; i < names.length; i++) {
       var name = names[i];
       var desc = GetOwnPropertyJS(obj, name);
@@ -1210,7 +1210,7 @@ function ObjectIsSealed(obj) {
   if (%IsExtensible(obj)) {
     return false;
   }
-  var names = ObjectGetOwnPropertyNames(obj);
+  var names = OwnPropertyKeys(obj);
   for (var i = 0; i < names.length; i++) {
     var name = names[i];
     var desc = GetOwnPropertyJS(obj, name);
@@ -1231,7 +1231,7 @@ function ObjectIsFrozen(obj) {
   if (%IsExtensible(obj)) {
     return false;
   }
-  var names = ObjectGetOwnPropertyNames(obj);
+  var names = OwnPropertyKeys(obj);
   for (var i = 0; i < names.length; i++) {
     var name = names[i];
     var desc = GetOwnPropertyJS(obj, name);