Exposed visibility deprecation warnings made errors + relevant test fixes

j2k/testData/multiFile/GetterAndSetterUsages/2.java

@@ -1,4 +1,4 @@
-class B {
+public class B {
     void foo(AAA a) {
         a.setX(a.getX() + 1);
         y += "a";

j2k/testData/multiFile/GetterAndSetterUsages/2.kt

@@ -1,5 +1,5 @@
-internal class B {
-    fun foo(a: AAA) {
+class B {
+    internal fun foo(a: AAA) {
         a.x = a.x + 1
         yy += "a"
     }