[ObjCExport] Support translation of enum classes

^KT-64953 Fixed

native/objcexport-header-generator/test/org/jetbrains/kotlin/backend/konan/tests/ObjCExportHeaderGeneratorTest.kt

@@ -44,7 +44,6 @@ class ObjCExportHeaderGeneratorTest(private val generator: HeaderGenerator) {
     }
 
     @Test
-    @TodoAnalysisApi
     fun `test - simpleEnumClass`() {
         doTest(headersTestDataDir.resolve("simpleEnumClass"))
     }