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

compiler/testData/diagnostics/tests/inner/nestedClassInObject.fir.kt

@@ -0,0 +1,16 @@
+object Object {
+    class NestedClass {
+        fun test() {
+            outerFun()
+            outerVal
+            OuterObject
+            OuterClass()
+        }
+    }
+
+    fun outerFun() {}
+    val outerVal = 4
+
+    object OuterObject
+    class OuterClass
+}