Microsoft.CodeAnalysis.Editor.Extensibility.NavigationBar.AbstractEditorNavigationBarItemService.GetNavigationLocationAsync(Microsoft.CodeAnalysis.Document, Microsoft.CodeAnalysis.Editor.NavigationBarItem, Microsoft.CodeAnalysis.NavigationBar.RoslynNavigationBarItem.SymbolItem, Microsoft.VisualStudio.Text.ITextVersion, System.Threading.CancellationToken)