[promises] port NewPromiseCapability to TF

src/builtins/builtins-promise.h

 // Copyright 2016 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.
 
 #include "src/code-stub-assembler.h"
 
 namespace v8 {
 namespace internal {
 
 typedef compiler::Node Node;
@@ skipping 26 matching lines @@
                               Label* out);
 
   void BranchIfFastPath(Node* context, Node* promise, Label* if_isunmodified,
                         Label* if_ismodified);
 
   Node* CreatePromiseResolvingFunctionsContext(Node* promise, Node* debug_event,
                                                Node* native_context);
 
   std::pair<Node*, Node*> CreatePromiseResolvingFunctions(
       Node* promise, Node* native_context, Node* promise_context);
+
+  Node* CreatePromiseGetCapabilitiesExecutorContext(Node* native_context,
+                                                    Node* promise_capability);
+
+  Node* NewPromiseCapability(Node* context, Node* constructor,
+                             Node* debug_event = nullptr);
+  Node* NewInternalPromiseCapability(Node* context, Node* parent);
 };
 
 }  // namespace internal
 }  // namespace v8