Dart_SendPortGetId and Dart_NewSendPort lose information about origin_id for the port

[aam]

$ cat send.dart
import 'dart:isolate';
import 'dart:ffi';

import 'package:ffi/ffi.dart';

@Native<Handle Function(Int64 port)>(
  symbol: 'Dart_NewSendPort')
external SendPort newSendPort(int obj);

@Native<Handle Function(Handle, Pointer<Int64>)>(
  symbol: 'Dart_SendPortGetId')
external Object sendPortGetId(Object sendPort, Pointer<Int64> out_id);

class A {}

main() async {
   final rp = ReceivePort();
   rp.close();

   Pointer<Int64> portid = calloc();
   sendPortGetId(rp.sendPort, portid);
   final sendPortThroughAPI = newSendPort(portid.value);
   sendPortThroughAPI.send('A');
   sendPortThroughAPI.send(A());
}

$ out/ReleaseX64/dart send.dart
Unhandled exception:
Invalid argument: is a regular instance reachable via : Instance of 'A'
#0      _SendPort._sendInternal (dart:isolate-patch/isolate_patch.dart:250:43)
#1      _SendPort.send (dart:isolate-patch/isolate_patch.dart:231:5)
#2      main (file:///p/d/d2/sdk/send.dart:24:23)
#3      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:297:19)
#4      _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12)

it should not throw on second send. Second send should behave similarly to the first one.

from flutter/flutter#147469