Add v8::Object::GetOwnPropertyNames(context, filter) method

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index be1c86e74a9946738d99ee04b483f69ea8069333..479a2f886b0e0f7548a922c80befe86ef8deb922 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -2657,6 +2657,18 @@ enum AccessControl {
 };
 
 /**
+ * Property filter bits. They can be or'ed to build a composite filter.
+ */
+enum PropertyFilter {
+  ALL_PROPERTIES = 0,
+  ONLY_WRITABLE = 1,
+  ONLY_ENUMERABLE = 2,
+  ONLY_CONFIGURABLE = 4,
+  SKIP_STRINGS = 8,
+  SKIP_SYMBOLS = 16
+};
+
+/**
  * Integrity level for objects.
  */
 enum class IntegrityLevel { kFrozen, kSealed };
@@ -2816,6 +2828,15 @@ class V8_EXPORT Object : public Value {
       Local<Context> context);
 
   /**
+   * Returns an array containing the names of the filtered properties
+   * of this object, including properties from prototype objects.  The
+   * array returned by this method contains the same values as would
+   * be enumerated by a for-in statement over this object.
+   */
+  V8_WARN_UNUSED_RESULT MaybeLocal<Array> GetOwnPropertyNames(
+      Local<Context> context, PropertyFilter filter);
+
+  /**
    * Get the prototype object.  This does not skip objects marked to
    * be skipped by __proto__ and it does not consult the security
    * handler.