src/vs/platform/userDataSync/common/settingsSync.ts/SettingsInitializer/isEmpty
class SettingsInitializer:	private async isEmpty(): Promise<boolean> {
		try {
			const fileContent = await this.fileService.readFile(this.environmentService.settingsResource);
			return isEmpty(fileContent.value.toString().trim());
		} catch (error) {
			return (<FileOperationError>error).fileOperationResult === FileOperationResult.FILE_NOT_FOUND;
		}
	}