Integration Tests which make use of `ControlTestBase` can erroneously pass when an exception is present

Add the following test to `System.Windows.Forms.UI.IntegrationTests`. It should fail as an exception is thrown. But it passes.

```csharp
[WinFormsFact]
public async Task Special_Test()
{
using Form form = new();
form.Shown += (object? sender, EventArgs e) => { throw new Exception("test"); };
await RunFormWithoutControlAsync(() => form, async (form) =>
{
await MoveMouseAsync(form, new Point(0, 0), false);
form.Close();
});
}
```