Effective visibility: lower bounds introduced for all protected and for protected and internal #KT-9540 Fixed

compiler/testData/diagnostics/tests/exposed/protectedInProtected.kt

@@ -0,0 +1,17 @@
+// See KT-9540 
+
+// all protected should have lower bound that is more permissive than private
+open class A {
+    private interface B
+    protected open class C {
+        protected interface D : <!EXPOSED_SUPER_INTERFACE!>B<!>
+    }
+}
+
+// protected and internal should have lower bound that is more permissive than private
+open class AA {
+    private interface BB
+    protected open class CC {
+        internal interface DD : <!EXPOSED_SUPER_INTERFACE!>BB<!>
+    }
+}