syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"scope"}]}
source_snippet:                 scope = Some(data.remove_mark(&mut glob_ctxt).0);
context_before:             while !data.is_descendant_of(expn_id, data.outer_expn(glob_ctxt)) {
context_after:                 if data.remove_mark(self).0 != scope.unwrap() {