IDEA-120784 "Class is public should be declared in a file named <Classname>.java" for inner interface

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting7/ambiguous/pck/AmbiguousMethodCall.java

@@ -13,7 +13,7 @@ class D {
     static <T> String foo(List<List<T>> x) { return null; }
 }
 
-public class Main {
+class Main {
     public static void main(String[] args){
         List<List<String>> x = null;
         foo(x).toLowerCase();