text: trait C[A]
  
  object C {
    implicit def ipl[A](implicit from: A => Ordered[A]): C[A] = null
  }
  
  object P {
    def foo[A](i: A, j: A)(implicit c: C[A]): Unit = ()
  }
  
  class ImplicitChainTest {
    def testTrivial: Unit = {
      P.foo('0', '9')
      P.foo('0', '9')
    }
  }
  