syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"pub(crate)"}]}
source_snippet:     pub(crate) ty: Ty<'tcx>,
context_before:     pub(crate) ty_def_span: Span,
context_after:     #[note(mir_build_type_not_structural_tip)]