Exposed visibility deprecation warnings made errors + relevant test fixes

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"
     }