RSRP-288335: 'Convert part of body to Linq' could do better in this case

foreach (var item in _activeBehaviors)
{
    var elements = VisualTreeHelper.FindElementsInHostCoordinates(point.Position, Application.Current.RootVisual);

    if (elements.Contains(item.AssociatedObject))
    {
        _activeBehavior = item;
        _activeBehavior.OnCapture();
        break;
    }
}

...becomes...

foreach (var item in from item in _activeBehaviors
                     let elements = VisualTreeHelper.FindElementsInHostCoordinates(point.Position, Application.Current.RootVisual)
                     where elements.Contains(item.AssociatedObject)
                     select item)
{
    _activeBehavior = item;
    _activeBehavior.OnCapture();
    break;
}

But, given that 'item' is of a reference type, this code could be simplified to:

var first = (from item in _activeBehaviors
            let elements = VisualTreeHelper.FindElementsInHostCoordinates(point.Position, Application.Current.RootVisual)
            where elements.Contains(item.AssociatedObject)
            select item).FirstOrDefault();
if (first != null)
{
    _activeBehavior = first;
    _activeBehavior.OnCapture();
}

In this case, the code can actually be refactored even further into this:

var elements = VisualTreeHelper.FindElementsInHostCoordinates(point.Position, Application.Current.RootVisual);
var first = _activeBehaviors.FirstOrDefault(item => elements.Contains(item.AssociatedObject));
if (first != null)
{
    _activeBehavior = first;
    _activeBehavior.OnCapture();
}

But I'm not sure whether there's enough information available about side effects for R# to make this last transformation.