Companion object that facilitates the importing of ValueEither members as an alternative to mixing it in. One use case is to import EitherValues's members so you can use left.value and right.value on Either in the Scala interpreter:
$ scala -cp scalatest-1.7.jar
Welcome to Scala version 2.9.1.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_29).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import org.scalatest._
import org.scalatest._
scala> import matchers.Matchers._
import matchers.Matchers._
scala> import EitherValues._
import EitherValues._
scala> val e: Either[String, Int] = Left("Muchas problemas")
e: Either[String,Int] = Left(Muchos problemas)
scala> e.left.value should be ("Muchos problemas")
scala> e.value should be < 9
org.scalatest.TestFailedException: The Either on which value was invoked was not defined.
at org.scalatest.EitherValues$RightValuable.value(EitherValues.scala:148)
at .<init>(<console>:18)
...