J2K: adapted for default visibility modifier 'public'

j2k/testData/fileOrElement/class/classWithMultiplyFields.kt

@@ -1,5 +1,5 @@
-class T {
-    var a: String
-    var b: String
-    var c = "abc"
+internal class T {
+    internal var a: String
+    internal var b: String
+    internal var c = "abc"
 }