Private visibility for non-const, non-jvmField class companion property backing field

jps-plugin/testData/incremental/withJava/kotlinUsedInJava/jvmFieldUnchanged/Usage.java

@@ -0,0 +1,7 @@
+import test.*;
+
+class Usage {
+    public static void main(String[] args) {
+        System.out.println(Klass.CONST + Klass.CONST);
+    }
+}