Do not register task list analyzer if solution-crawler is explicitly off

Author: CyrusNajmabadi

src/VisualStudio/Core/Def/TaskList/VisualStudioTaskListService.cs

@@ -101,7 +101,7 @@ private async Task StartAsync(VisualStudioWorkspace workspace)
                 _ = new VisualStudioTaskListTable(workspace, _threadingContext, _tableManagerProvider, this);
 
                 // Now that we've hooked everything up, kick off the work to actually start computing and reporting items.
-                RegisterIncrementalAnalayzerAndStartComputingTaskListItems();
+                RegisterIncrementalAnalyzerAndStartComputingTaskListItems();
             }
             catch (OperationCanceledException)
             {
@@ -149,13 +149,17 @@ public ImmutableArray<TaskListItem> GetTaskListItems(Workspace workspace, Docume
                 ? values
                 : ImmutableArray<TaskListItem>.Empty;
 
-        private void RegisterIncrementalAnalayzerAndStartComputingTaskListItems()
+        private void RegisterIncrementalAnalyzerAndStartComputingTaskListItems()
         {
             // If we're in pull-diagnostics mode, then todo-comments will be handled by LSP.
             var diagnosticMode = _globalOptions.GetDiagnosticMode();
             if (diagnosticMode == DiagnosticMode.LspPull)
                 return;
 
+            // Do not register if solution crawler is explicitly off.
+            if (!_globalOptions.GetOption(SolutionCrawlerRegistrationService.EnableSolutionCrawler))
+                return;
+
             var services = _workspace.Services.SolutionServices;
             var registrationService = services.GetRequiredService<ISolutionCrawlerRegistrationService>();
             var analyzerProvider = new TaskListIncrementalAnalyzerProvider(_globalOptions, this);