Fix S4158/S2583 FP: When elements are added to a list in List.ForEach the CollectionEmpty constraint is not removed

[mary-georgiou-sonarsource]

FP reported in the community forum.

Repro steps

public class Repro
{
    public int Id { get; set; }
    public bool Flag { get; set; }
    
    public static void Test(List<Repro> aList)
    {
        List<int> collectionOfIds = new List<int>();
        aList.FindAll(x => x.Flag).ForEach(x => collectionOfIds.Add(x.Id));

        collectionOfIds.Clear();    // FP S4158
        if (collectionOfIds.Count > 0)  // FP S2583
        { }
    }
}