fix test

modules/core/src/main/scala/ch/epfl/scala/debugadapter/internal/evaluator/RuntimeDefaultValidator.scala

@@ -94,7 +94,7 @@ class RuntimeDefaultValidator(val frame: JdiFrame, val sourceLookUp: SourceLookU
       .filter(_.`type`.name() != "scala.Function0", runtimeFatal = true)
       .map(v => LocalVarTree(name, v.`type`))
 
-  // For attributes defined in superclass of class (and not case class), we need to call `visibleFields`
+  // We might sometimes need to access a 'private' attribute of a class
   private def fieldLookup(name: String, ref: ReferenceType) =
     Option(ref.fieldByName(name))
       .orElse { ref.visibleFields().asScala.find(_.name().endsWith("$" + name)) }

modules/tests/src/test/scala/ch/epfl/scala/debugadapter/internal/RuntimeEvaluatorTests.scala

@@ -439,26 +439,23 @@ abstract class RuntimeEvaluatorTests(val scalaVersion: ScalaVersion) extends Deb
     )
   }
 
-  test("Should access a field defined in super class --- scala") {
+  test("Should access a field defined in super class --- scala".only) {
     val source =
       """|package example
          |
-         |class A {
-         |  val x = 42
-         |}
-         |
-         |class B extends A
+         |class A(x: Int)
+         |class B(x: Int) extends A(x) { def foo = x}
          |
          |object Main {
          |  def main(args: Array[String]): Unit = {
-         |    val b = new B
+         |    val b = new B(42)
          |    println("ok")
          |  }
          |}
          |""".stripMargin
     implicit val debuggee = TestingDebuggee.mainClass(source, "example.Main", scalaVersion)
     check(
-      Breakpoint(12),
+      Breakpoint(9),
       Evaluation.success("b.x", 42)
     )
   }