Code completion for nested struct/unions

#include "mainwindow.h"
#include "ui_mainwindow.h"

typedef union {
	int Word;
	struct {
		int Test1: 1;
		int Test2: 1;
		int Test3: 1;
		int Test4: 1;
	} Bit;
} TTestUnion;

MainWindow::MainWindow(QWidget *parent) :
	QMainWindow(parent),
	ui(new Ui::MainWindow)
{
	ui->setupUi(this);
}

MainWindow::~MainWindow()
{
	delete ui;
}

void MainWindow::on_pushButton_clicked()
{
	TTestUnion tu;

	tu.Bit.Test1 = 1;
}