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

compiler/testData/diagnostics/tests/targetedBuiltIns/backwardCompatibility/finalize.fir.kt

@@ -0,0 +1,10 @@
+enum class TestEnum {
+    ENTRY;
+
+    fun getDeclaringClass() {}
+    fun finalize() {}
+}
+
+class TestFinalize {
+    fun finalize() {}
+}