jvm-abi-gen: keep InnerClass attributes for all referenced types

^KT-55233 Fixed

plugins/jvm-abi-gen/testData/content/innerClasses/Outer.java

@@ -0,0 +1,6 @@
+public class Outer {
+    public static class Middle {
+        public static class Inner {
+        }
+    }
+}