/// <summary>
/// Searches for an using directive and returns zero-based index of the last occurrence in the list.
/// </summary>
/// <param name="usingDirective"></param>
/// <returns></returns>
public int LastIndexOf(UsingDirectiveSyntax usingDirective)
{
return(Usings.LastIndexOf(usingDirective));
}
/// <summary>
/// Searches for an using directive that matches the predicate and returns returns zero-based index of the last occurrence in the list.
/// </summary>
/// <param name="predicate"></param>
/// <returns></returns>
public int LastIndexOf(Func <UsingDirectiveSyntax, bool> predicate)
{
return(Usings.LastIndexOf(predicate));
}