syntax_data: {"ast_node_type":"other","tokens":[{"end":13,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:             }
context_before:                 Ok(relation.relate(a_ty, b_ty)?.into())
context_after:             (ty::GenericArgKind::Const(a_ct), ty::GenericArgKind::Const(b_ct)) => {