[wasm] Avoid double-serializing the wire bytes

src/d8.h

 // Copyright 2012 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_D8_H_
 #define V8_D8_H_
 
 #include <string>
 
 #include "src/allocation.h"
@@ skipping 358 matching lines @@
                              Local<Value> value,
                              const  PropertyCallbackInfo<void>& info);
 
   static void Print(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void Write(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void QuitOnce(v8::FunctionCallbackInfo<v8::Value>* args);
   static void Quit(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void Version(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void Read(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void ReadBuffer(const v8::FunctionCallbackInfo<v8::Value>& args);
+  static void ExperimentalDoubleAdder(
+      const v8::FunctionCallbackInfo<v8::Value>& args);
+  static double ExperimentalNativeDoubleAdder(double a, double b);
   static Local<String> ReadFromStdin(Isolate* isolate);
   static void ReadLine(const v8::FunctionCallbackInfo<v8::Value>& args) {
     args.GetReturnValue().Set(ReadFromStdin(args.GetIsolate()));
   }
   static void Load(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void WorkerNew(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void WorkerPostMessage(
       const v8::FunctionCallbackInfo<v8::Value>& args);
   static void WorkerGetMessage(const v8::FunctionCallbackInfo<v8::Value>& args);
   static void WorkerTerminate(const v8::FunctionCallbackInfo<v8::Value>& args);
@@ skipping 67 matching lines @@
       const v8::FunctionCallbackInfo<v8::Value>& args);
   static MaybeLocal<Module> FetchModuleTree(v8::Local<v8::Context> context,
                                             const std::string& file_name);
 };
 
 
 }  // namespace v8
 
 
 #endif  // V8_D8_H_