private static async Task <ImmutableArray <ITagSpan <InlineDiagnosticsTag> > > GetTagSpansAsync(TestWorkspace workspace)
{
workspace.ApplyOptions(new[] { KeyValuePairUtil.Create(new OptionKey2(InlineDiagnosticsOptions.EnableInlineDiagnostics, LanguageNames.CSharp), (object)true) });
return((await TestDiagnosticTagProducer <InlineDiagnosticsTaggerProvider, InlineDiagnosticsTag> .GetDiagnosticsAndErrorSpans(workspace)).Item2);
}