Switch class loading logic in blackBoxWithJava tests

BoxWithJava tests now by default are loaded with the classloader which has
test's classpath in itself, as in the former ClassPathInTheSameClassLoaderTest

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/overrideProtectedFunInPackage.java

@@ -0,0 +1,9 @@
+package protectedPack;
+
+import java.lang.String;
+
+public class overrideProtectedFunInPackage {
+    protected String foo() {
+        return "fail";
+    }
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/overrideProtectedFunInPackage.kt

@@ -0,0 +1,17 @@
+package protectedPackKotlin
+
+import protectedPack.overrideProtectedFunInPackage
+
+class Derived: overrideProtectedFunInPackage() {
+    protected override fun foo(): String? {
+        return "OK"
+    }
+
+    fun test(): String {
+        return foo()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/protectedFunInPackage.java

@@ -0,0 +1,9 @@
+package protectedPack;
+
+import java.lang.String;
+
+public class protectedFunInPackage {
+    protected String foo() {
+        return "OK";
+    }
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/protectedFunInPackage.kt

@@ -0,0 +1,5 @@
+package protectedPack
+
+fun box(): String {
+   return protectedFunInPackage().foo()!!
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/protectedPropertyInPackage.java

@@ -0,0 +1,7 @@
+package protectedPack;
+
+import java.lang.String;
+
+public class protectedPropertyInPackage {
+    protected String foo = "OK";
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/protectedPropertyInPackage.kt

@@ -0,0 +1,5 @@
+package protectedPack
+
+fun box(): String {
+   return protectedPropertyInPackage().foo!!
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/protectedStaticClass.java

@@ -0,0 +1,11 @@
+package protectedPack;
+
+import java.lang.String;
+
+public class protectedStaticClass {
+    protected static class Inner {
+        public String foo() {
+            return "OK";
+        }
+    }
+}

compiler/testData/codegen/boxWithJava/visibility/protectedAndPackage/protectedStaticClass.kt

@@ -0,0 +1,11 @@
+package protectedPack
+
+class Derived(): protectedStaticClass() {
+    fun test(): String {
+        return protectedStaticClass.Inner().foo()!!
+    }
+}
+
+fun box(): String {
+   return Derived().test()
+}