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

compiler/testData/diagnostics/tests/classObjects/classObjectRedeclaration.fir.kt

@@ -0,0 +1,20 @@
+// !DIAGNOSTICS: -DUPLICATE_CLASS_NAMES
+package test
+
+class A {
+    object Companion
+
+    companion object
+}
+
+class B {
+    companion object Named
+
+    object Named
+}
+
+class C {
+    class Named
+
+    companion object Named
+}