Exposed visibility checking, a set of exposed visibility tests, some test fixes

Effective visibility mechanism introduced.
Local is considered as public, java protected as Kotlin protected, java package private as Kotlin private.

compiler/testData/diagnostics/tests/namedArguments/disallowForJavaMethods.kt

@@ -1,6 +1,6 @@
 // FILE: JavaSuperClass.java
 
-class JavaSuperClass {
+public class JavaSuperClass {
     public void foo(int javaName) {}
 
     public void multipleParameters(int first, long second, String third) {}