Fixes #50763: All running Visual Studio code instances shutdown all at once

src/vs/code/electron-browser/sharedProcess/contrib/languagePackCachedDataCleaner.ts

@@ -66,9 +66,13 @@ export class LanguagePackCachedDataCleaner {
 				}
 				// Cleanup entries for language packs that aren't installed anymore
 				const cacheDir = path.join(this._environmentService.userDataPath, 'clp');
+				let exists = await pfs.exists(cacheDir);
+				if (!exists) {
+					return;
+				}
 				for (let entry of await pfs.readdir(cacheDir)) {
 					if (installed[entry]) {
-						this._logService.info(`Skipping directory ${entry}. Language pack still in use`);
+						this._logService.info(`Skipping directory ${entry}. Language pack still in use.`);
 						continue;
 					}
 					this._logService.info('Removing unused language pack:', entry);