Fix Node-CI build after recent V8 updates (#227)

Author: isheludko

src/node.cc

@@ -789,9 +789,6 @@ static ExitCode ProcessGlobalArgsInternal(std::vector<std::string>* args,
 
   v8_args.emplace_back("--js-source-phase-imports");
 
-  // WebAssembly JS Promise Integration
-  v8_args.emplace_back("--experimental-wasm-jspi");
-
 #ifdef __POSIX__
   // Block SIGPROF signals when sleeping in epoll_wait/kevent/etc.  Avoids the
   // performance penalty of frequent EINTR wakeups when the profiler is running.

src/util-inl.h

@@ -723,7 +723,7 @@ inline v8::MaybeLocal<v8::Object> NewDictionaryInstanceNullProto(
     if (value.IsEmpty()) return v8::MaybeLocal<v8::Object>();
   }
   v8::Local<v8::Object> obj = tmpl->NewInstance(context, property_values);
-  if (obj->SetPrototypeV2(context, v8::Null(context->GetIsolate()))
+  if (obj->SetPrototypeV2(context, v8::Null(v8::Isolate::GetCurrent()))
           .IsNothing()) {
     return v8::MaybeLocal<v8::Object>();
   }