syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"Ok(match"}]}
source_snippet:         Ok(match (a.kind(), b.kind()) {
context_before:     ) -> RelateResult<'tcx, Self> {
context_after:             (ty::TermKind::Ty(a), ty::TermKind::Ty(b)) => relation.relate(a, b)?.into(),