[promises] Move CreateResolvingFunctions to c++

src/factory.h

 // Copyright 2014 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.
 
 #ifndef V8_FACTORY_H_
 #define V8_FACTORY_H_
 
 #include "src/globals.h"
 #include "src/isolate.h"
 #include "src/messages.h"
@@ skipping 292 matching lines @@
   Handle<Context> NewDebugEvaluateContext(Handle<Context> previous,
                                           Handle<ScopeInfo> scope_info,
                                           Handle<JSReceiver> extension,
                                           Handle<Context> wrapped,
                                           Handle<StringSet> whitelist);
 
   // Create a block context.
   Handle<Context> NewBlockContext(Handle<JSFunction> function,
                                   Handle<Context> previous,
                                   Handle<ScopeInfo> scope_info);
+  // Create a promise context.
+  Handle<Context> NewPromiseResolvingFunctionContext(int length);
 
   // Allocate a new struct.  The struct is pretenured (allocated directly in
   // the old generation).
   Handle<Struct> NewStruct(InstanceType type);
 
   Handle<AliasedArgumentsEntry> NewAliasedArgumentsEntry(
       int aliased_context_slot);
 
   Handle<AccessorInfo> NewAccessorInfo();
 
@@ skipping 465 matching lines @@
                                      FunctionMode function_mode);
 
   void SetStrictFunctionInstanceDescriptor(Handle<Map> map,
                                            FunctionMode function_mode);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_