FIR: Refine visibility check for class members

compiler/testData/diagnostics/tests/visibility/overrideOfMemberInPackagePrivateClass.kt

@@ -0,0 +1,20 @@
+// FIR_IDENTICAL
+// SKIP_TXT
+// FILE: test/JavaBase.java
+package test;
+
+abstract /* package-private */ class JavaBase {
+    public void foo() {}
+}
+
+// FILE: test/JavaBase2.java
+package test;
+public class JavaBase2 extends JavaBase {}
+
+// FILE: main.kt
+
+import test.*
+
+class KotlinClass : JavaBase2() {
+    override fun foo() {}
+}