Improve AutoComplete types

close #10619

components/auto-complete/index.tsx

@@ -6,7 +6,11 @@ import Input from '../input';
 import InputElement from './InputElement';
 
 export interface DataSourceItemObject { value: string; text: string; }
-export type DataSourceItemType = string | DataSourceItemObject;
+export type DataSourceItemType =
+  string |
+  DataSourceItemObject |
+  React.ReactElement<OptionProps> |
+  React.ReactElement<OptGroupProps>;
 
 export interface AutoCompleteInputProps {
   onChange?: React.FormEventHandler<any>;