#MSVS2013, Find All References

using System;
using System.Collections;

class Program : IEnumerable
{
  static void Main() {
    var p = new Program { "Does not found", };
    p.Add("This is found");
  }

  // Try Find All References for this method
  public void Add(object x) { }

  IEnumerator IEnumerable.GetEnumerator() {
    throw new NotImplementedException();
  }
}