syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"#[note(mir_build_type_not_structural_tip)]"}]}
source_snippet:     #[note(mir_build_type_not_structural_tip)]
context_before:     pub(crate) ty: Ty<'tcx>,
context_after:     pub(crate) manual_partialeq_impl_span: Option<Span>,