[codegen] added konan.internal.NoReorderFields to disable field reordering

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/LlvmDeclarations.kt

@@ -135,6 +135,9 @@ private fun Context.getDeclaredFields(classDescriptor: ClassDescriptor): List<Ir
     // TODO: hack over missed parents in deserialized fields/property declarations.
     fields.forEach{it.parent = irClass}
 
+    if (classDescriptor.hasAnnotation(FqName.fromSegments(listOf("konan", "internal", "NoReorderFields"))))
+        return fields
+
     return fields.sortedBy {
         it.fqNameSafe.localHash.value
     }