protected override void EmitCleanupManaged(ILCodeStream codeStream)
{
LoadManagedAddr(codeStream);
codeStream.Emit(ILOpcode.ldfld, _ilCodeStreams.Emitter.NewToken(InteropTypes.GetHandleRef(Context).GetKnownField("_wrapper")));
codeStream.Emit(ILOpcode.call, _ilCodeStreams.Emitter.NewToken(InteropTypes.GetGC(Context).GetKnownMethod("KeepAlive", null)));
}