[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/j+k/privateNestedClassStaticMember.fir.kt

@@ -0,0 +1,18 @@
+// KT-4149 static members of Java private nested class are accessible from Kotlin
+
+// FILE: javaPackage/Foo.java
+
+package javaPackage;
+
+public class Foo {
+    private static class Bar {
+        public static void doSmth() {
+        }
+    }
+}
+
+// FILE: 1.kt
+
+fun main() {
+    javaPackage.Foo.Bar.doSmth()
+}