1 files changed, 24 insertions, 0 deletions
diff --git a/deps/v8/src/builtins/extras-utils.tq b/deps/v8/src/builtins/extras-utils.tq
new file mode 100644
index 0000000000..2b9b79739e
--- /dev/null
+++ b/deps/v8/src/builtins/extras-utils.tq
@@ -0,0 +1,24 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+namespace extras_utils {
+  extern runtime CreatePrivateSymbol(Context, Object): HeapObject;
+  extern runtime PromiseMarkAsHandled(Context, Object): Undefined;
+  extern runtime PromiseStatus(Context, Object): Smi;
+
+  javascript builtin ExtrasUtilsCreatePrivateSymbol(
+      context: Context, receiver: Object, ...arguments): HeapObject {
+    return CreatePrivateSymbol(context, arguments[0]);
+  }
+
+  javascript builtin ExtrasUtilsMarkPromiseAsHandled(
+      context: Context, receiver: Object, ...arguments): Undefined {
+    return PromiseMarkAsHandled(context, arguments[0]);
+  }
+
+  javascript builtin ExtrasUtilsPromiseState(
+      context: Context, receiver: Object, ...arguments): Smi {
+    return PromiseStatus(context, arguments[0]);
+  }
+}