Check related files API flag when IntelliSense is disabled (#12743)

Author: benmcmorran

Extension/src/LanguageServer/extension.ts

@@ -375,7 +375,7 @@ function onInterval(): void {
 /**
  * registered commands
  */
-export function registerCommands(enabled: boolean, isRelatedFilesApiEnabled: boolean = false): void {
+export function registerCommands(enabled: boolean, isRelatedFilesApiEnabled: boolean): void {
     commandDisposables.forEach(d => d.dispose());
     commandDisposables.length = 0;
     commandDisposables.push(vscode.commands.registerCommand('C_Cpp.SwitchHeaderSource', enabled ? onSwitchHeaderSource : onDisabledCommand));

Extension/src/main.ts

@@ -146,7 +146,8 @@ export async function activate(context: vscode.ExtensionContext): Promise<CppToo
     if (shouldActivateLanguageServer) {
         await LanguageServer.activate();
     } else if (isIntelliSenseEngineDisabled) {
-        LanguageServer.registerCommands(false);
+        const isRelatedFilesApiEnabled = await Telemetry.isExperimentEnabled("CppToolsRelatedFilesApi");
+        LanguageServer.registerCommands(false, isRelatedFilesApiEnabled);
         // The check here for isIntelliSenseEngineDisabled avoids logging
         // the message on old Macs that we've already displayed a warning for.
         log(localize("intellisense.disabled", "intelliSenseEngine is disabled"));