syntax_data: {"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"return"}]}
source_snippet:             return Const::Ty(Ty::new_error(tcx, guar), ty::Const::new_error(tcx, guar));
context_before:         (ast::LitKind::Err(guar), _) => {
context_after:         }