object create {
  val z = 1;
  val y = 2;
  
    val zy = List( z, y );    // ok
    val zy2 = List( zy:_* );  // ok

  // (a) illegal, but passes the parser
  // crashes in uncurry later on
    val oops = List( zy:_*, 2,3,4 );

 // (b) should be legal, but passes not
    val help = List( 2,3,4, zy:_* );
}