{"ast_node_type":"variable","tokens":[{"end":56,"kind":"keyword","start":0,"text":"let"}]}
        let (body, sm) = db.body_with_source_map(*self);
    fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
        if let &DefWithBodyId::VariantId(v) = self {