private static async Task TestAsync(string contents)
{
using var workspace = TestWorkspace.CreateWorkspace(
TestWorkspace.CreateWorkspaceElement(LanguageNames.CSharp,
files: new[] { contents.Replace("|", " ") },
isMarkup: false));
var document = workspace.CurrentSolution.GetRequiredDocument(workspace.Documents.First().Id);
var root = await document.GetRequiredSyntaxRootAsync(default);
