visibility inspection: forbid make protected if used qualified outside package (IDEA-166106)

java/java-tests/testData/inspection/visibility/usedFromAnotherPackage/expected.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<problems/>

java/java-tests/testData/inspection/visibility/usedFromAnotherPackage/src/ThisClass.java

@@ -0,0 +1,6 @@
+import a.A;
+class ThisClass extends A {
+    private void foo(A aa) {
+        System.out.println(aa.constanta);
+    }
+}

java/java-tests/testData/inspection/visibility/usedFromAnotherPackage/src/a/A.java

@@ -0,0 +1,4 @@
+package a;
+public class A {
+  public int constanta = 0;
+}