Adapt CompileKotlinAgainstKotlin test to black box format

Rename/remove some obsolete test cases

compiler/testData/compileKotlinAgainstKotlin/annotationInInterface.kt

@@ -0,0 +1,24 @@
+// FILE: A.kt
+
+package a
+
+@Retention(AnnotationRetention.RUNTIME)
+annotation class Ann
+
+interface Tr {
+    @Ann
+    fun foo() {}
+}
+
+// FILE: B.kt
+
+class C : a.Tr
+
+fun box(): String {
+    val method = C::class.java.getDeclaredMethod("foo")
+    val annotations = method.getDeclaredAnnotations().joinToString("\n")
+    if (annotations != "@a.Ann()") {
+        return "Fail: $annotations"
+    }
+    return "OK"
+}