extensions/typescript-language-features/src/task/taskProvider.ts/TscTaskProvider/getBuildTask
class TscTaskProvider:	private getBuildTask(workspaceFolder: vscode.WorkspaceFolder | undefined, label: string, command: string, args: string[], buildTaskidentifier: TypeScriptTaskDefinition): vscode.Task {
		const buildTask = new vscode.Task(
			buildTaskidentifier,
			workspaceFolder || vscode.TaskScope.Workspace,
			vscode.l10n.t("build - {0}", label),
			'tsc',
			new vscode.ShellExecution(command, args),
			'$tsc');
		buildTask.group = vscode.TaskGroup.Build;
		buildTask.isBackground = false;
		return buildTask;
	}