[Test] Merge box against java testdata into codegen black box testsdata

compiler/testData/codegen/visibility/protectedStatic/funNestedStaticGenericClass.kt

@@ -0,0 +1,24 @@
+// DONT_TARGET_EXACT_BACKEND: JS JS_IR JS_IR_ES6 WASM NATIVE
+// MODULE: lib
+// FILE: J.java
+
+public class J<T> {
+    public static class Inner<S> {
+        protected static String protectedFun() {
+            return "OK";
+        }
+    }
+}
+
+// MODULE: main(lib)
+// FILE: 1.kt
+
+class Derived : J.Inner<String>() {
+    fun test(): String {
+        return J.Inner.protectedFun()!!
+    }
+}
+
+fun box(): String {
+    return Derived().test()
+}