{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"//"}]}
                // handed approach to avoid ICEs by ignoring the suggestion outright.
                // Suggestions coming from macros can have malformed spans. This is a heavy
                let invalid = subst.parts.iter().any(|item| sm.is_valid_span(item.span).is_err());