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

compiler/testData/diagnostics/tests/objects/localObjectInsideObject.fir.kt

@@ -0,0 +1,11 @@
+// !CHECK_TYPE
+
+fun foo() {
+    val a = object {
+        val b = object {
+            val c = 42
+        }
+    }
+
+    checkSubtype<Int>(a.b.c)
+}