lifted code that uses non-bound syms: works

gistfile1.txt

import scala.tools.nsc.reporters._
import scala.tools.nsc.Settings
import reflect.runtime.Mirror.ToolBox

object Test extends App {
  val code = scala.reflect.Code.lift{
    println(List(1).map(x => x).length)
  };

  val reporter = new ConsoleReporter(new Settings)
  val toolbox = new ToolBox(reporter)
  val ttree = toolbox.typeCheck(code.tree)
  toolbox.runExpr(ttree)
}