Rename tests: boxWithJava -> boxAgainstJava

compiler/testData/codegen/boxAgainstJava/visibility/protectedStatic/funObject.kt

@@ -0,0 +1,9 @@
+object A: funObject() {
+  fun test(): String {
+    return funObject.protectedFun()!!
+  }
+}
+
+fun box(): String {
+  return A.test()
+}