More annotation generation for declarations with test cases

compiler/testData/ir/irText/declarations/annotations/enumEntriesWithAnnotations.kt

@@ -0,0 +1,8 @@
+annotation class TestAnn(val x: String)
+
+enum class TestEnum {
+    @TestAnn("ENTRY1") ENTRY1,
+    @TestAnn("ENTRY2") ENTRY2 {
+        val x = 42
+    }
+}