package dotty.tools
package dotc
package ast

import core._
import util.Positions._, Types._, Contexts._, Constants._, Names._, NameOps._, Flags._
import SymDenotations._, Symbols._, StdNames._, Annotations._, Trees._
import TreeInfo._
import Decorators._
import language.higherKinds
import collection.mutable.ListBuffer

trait Desugar { this: untpd.type =>



}