`with` does not highlight at the end of a line

[nicolasstucki]

with is a keyword and should always be highlighted as such.

[nicolasstucki]

[nicolasstucki]

This will be important in Scala 3 for given definitions. See scala/scala3#10538

given tc: TC with {}

given Liftable[Boolean] with {
  def toExpr(b: Boolean) = ...
}

given listMonad: Monad[List] with
  extension [A, B](xs: List[A]) def flatMap (f: A => List[B]): List[B] = xs.flatMap(f)
  def pure[A](x: A): List[A] = List(x)