syntax_data: {"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"(ty::Alias(ty::Opaque,"}]}
source_snippet:         (ty::Alias(ty::Opaque, _), _) | (_, ty::Alias(ty::Opaque, _)) => {
context_after:             assert!(!infcx.next_trait_solver());