/// <summary>
/// Gets the dot-like token we're after, and also the start of the expression we'd want to place any text before.
/// </summary>
private static (SyntaxToken dotLikeToken, int expressionStart) GetDotAndExpressionStart(SyntaxNode root, int position, CancellationToken cancellationToken)
{
if (CompletionUtilities.GetDotTokenLeftOfPosition(root.SyntaxTree, position, cancellationToken) is not SyntaxToken dotToken)
{
return(default);