Optionally open all workspace files and scan for symbols

Author: andyleejordan

src/PowerShellEditorServices/Services/Symbols/SymbolsService.cs

@@ -341,7 +341,7 @@ public async Task<IEnumerable<SymbolReference>> GetDefinitionOfSymbolAsync(
             return declarations;
         }
 
-        private async Task ScanWorkspacePSFiles(CancellationToken cancellationToken = default)
+        internal async Task ScanWorkspacePSFiles(CancellationToken cancellationToken = default)
         {
             if (_configurationService.CurrentSettings.AnalyzeOpenDocumentsOnly)
             {

src/PowerShellEditorServices/Services/Workspace/Handlers/WorkspaceSymbolsHandler.cs

@@ -34,9 +34,9 @@ public PsesWorkspaceSymbolsHandler(ILoggerFactory loggerFactory, SymbolsService
 
         public override async Task<Container<SymbolInformation>> Handle(WorkspaceSymbolParams request, CancellationToken cancellationToken)
         {
+            await _symbolsService.ScanWorkspacePSFiles(cancellationToken).ConfigureAwait(false);
             List<SymbolInformation> symbols = new();
 
-            // TODO: This should (optionally) check all the files, like we do for scanning for references by calling ScanWorkspacePSFiles.
             foreach (ScriptFile scriptFile in _workspaceService.GetOpenedFiles())
             {
                 IEnumerable<SymbolReference> foundSymbols = _symbolsService.FindSymbolsInFile(scriptFile);