Updated role prop type to generic string

Author: Eric Olkowski

packages/react-core/src/components/Divider/Divider.tsx

@@ -32,7 +32,7 @@ export interface DividerProps extends React.HTMLProps<HTMLElement> {
     '2xl'?: 'vertical' | 'horizontal';
   };
   /** The ARIA role of the divider when the component property has a value other than "hr". */
-  role?: 'separator' | 'presentation';
+  role?: string;
 }
 
 export const Divider: React.FunctionComponent<DividerProps> = ({

packages/react-core/src/components/Toolbar/ToolbarItem.tsx

@@ -188,6 +188,8 @@ export const ToolbarItem: React.FunctionComponent<ToolbarItemProps> = ({
   ...props
 }: ToolbarItemProps) => {
   if (variant === ToolbarItemVariant.separator) {
+    // TODO: consider removing spread props here so we can update Divider role prop to union of
+    // separator or presentation rather than generic string
     return <Divider className={css(className)} orientation={{ default: 'vertical' }} {...props} />;
   }