Originally reported by @xuwei-k as sbt/sbt#3427
/tmp/sbt_a4c7a1d5/xsbt/ConsoleInterface.scala:11: error: object ILoop is not a member of package scala.tools.nsc.interpreter
import scala.tools.nsc.interpreter.{ ILoop, IMain, InteractiveReader }
^
/tmp/sbt_a4c7a1d5/xsbt/ConsoleInterface.scala:41: error: not found: type ILoop
val loop = new ILoop {
^
We need a new compiler bridge for Scala 2.13.
/cc @lrytz