storage - handle strict null

src/tsconfig.strictNullChecks.json

@@ -510,7 +510,7 @@
 		"./vs/platform/statusbar/common/statusbar.ts",
 		"./vs/platform/storage/common/storage.ts",
 		"./vs/platform/storage/common/storageLegacyService.ts",
-		"./vs/platform/storage/node/storageService.ts",
+		//"./vs/platform/storage/node/storageService.ts", TODO@Ben bring back when storageMigration is removed
 		"./vs/platform/telemetry/browser/errorTelemetry.ts",
 		"./vs/platform/telemetry/common/telemetry.ts",
 		"./vs/platform/telemetry/common/telemetryService.ts",

src/vs/platform/storage/node/storageService.ts

@@ -312,7 +312,7 @@ export class StorageService extends Disposable implements IStorageService {
 	}
 
 	private ensureWorkspaceStorageFolderMeta(payload: IWorkspaceInitializationPayload): void {
-		let meta: object;
+		let meta: object | undefined = void 0;
 		if (isSingleFolderWorkspaceInitializationPayload(payload)) {
 			meta = { folder: payload.folder.toString() };
 		} else if (isWorkspaceIdentifier(payload)) {