rem: free(iPtr);
add: wfree(iPtr);
context: destroyEditMenuItem(WEditMenuItem *iPtr){    if (iPtr->label)	free(iPtr->label);    if (iPtr->data && iPtr->destroyData)	(*iPtr->destroyData)(iPtr->data);    if (iPtr->submenu)	WMDestroyWidget(iPtr->submenu);    free(iPtr);}