syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"ty::PredicateKind::AliasRelate(..)"}]}
source_snippet:                 ty::PredicateKind::AliasRelate(..) => {
context_before:                 }
context_after:                     bug!("AliasRelate is only used by the new solver")