syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"#[suggestion(code"}]}
source_snippet:     #[suggestion(code = "ref ", applicability = "machine-applicable")]
context_before:     pub(crate) ty: Ty<'tcx>,
context_after:     pub(crate) suggest_borrowing: Option<Span>,