src/vs/workbench/services/workingCopy/common/workingCopyBackupService.ts/WorkingCopyBackupServiceImpl/getBackups
class WorkingCopyBackupServiceImpl:	async getBackups(): Promise<IWorkingCopyIdentifier[]> {
		const model = await this.ready;

		const backups = await Promise.all(model.get().map(backupResource => this.resolveIdentifier(backupResource, model)));

		return coalesce(backups);
	}