scala> import scala.reflect.runtime.universe._
import scala.reflect.runtime.universe._

scala> showCode(reify {
     | for{
     |     x <- 1 to 5
     |     _ = print("hi")
     |   } print(x)
     | }.tree)
res1: String =
Predef.intWrapper(1).to(5).map(((x) => {
  val x$1 = Predef.print("hi");
  Tuple2.apply(x, x$1)
}))(IndexedSeq.canBuildFrom).foreach(((x$2) => (x$2: @unchecked) match {
  case Tuple2((x @ _), _) => Predef.print(x)
}))