Fix after dotty#13944

(cherry picked from commit 1e71365)

Author: KacperFKorban

jvm/refspec/src/main/scala/org/scalatest/refspec/RefSpecLike.scala

@@ -129,6 +129,8 @@ trait RefSpecLike extends TestSuite with Informing with Notifying with Alerting
                     throw new NotAllowedException(FailureMessages.exceptionWasThrownInObject(Prettifier.default, UnquotedString(other.getClass.getName), UnquotedString(scopeDesc)), Some(other), Right((_: StackDepthException) => 9))
                   else if (ScalaTestVersions.BuiltForScalaVersion.startsWith("2.13") || ScalaTestVersions.BuiltForScalaVersion.startsWith("3."))
                     throw new NotAllowedException(FailureMessages.exceptionWasThrownInObject(Prettifier.default, UnquotedString(other.getClass.getName), UnquotedString(scopeDesc)), Some(other), Right((_: StackDepthException) => 7))
+                  else if (ScalaTestVersions.BuiltForScalaVersion.startsWith("3"))
+                    throw new NotAllowedException(FailureMessages.exceptionWasThrownInObject(Prettifier.default, UnquotedString(other.getClass.getName), UnquotedString(scopeDesc)), Some(other), Right((_: StackDepthException) => 7))
                   else
                     throw new NotAllowedException(FailureMessages.exceptionWasThrownInObject(Prettifier.default, UnquotedString(other.getClass.getName), UnquotedString(scopeDesc)), Some(other), Right((_: StackDepthException) => 8))
                 case other: Throwable => throw other