/// <summary>
/// Tries to get a symbol at the specified location.
/// </summary>
/// <param name="position">The requested position.</param>
/// <param name="symbol">The symbol that could be identified at the given position, or <c>null</c> if no symbol could be identified.</param>
/// <returns><c>true</c> if a symbol was found, otherwise <c>false</c>.</returns>
/// <exception cref="System.InvalidOperationException">Thrown if there was one more symbol at the specified position. This should never happen, unless there was an error.</exception>
public bool TryGetSymbolAt(Position position, [NotNullWhen(true)] out ILocalizableSymbol?symbol)
{
symbol = LookupTree.Query(position).SingleOrDefault();
return(symbol != null);
}