syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"DefKind::TraitAlias"}]}
source_snippet:         DefKind::TraitAlias | DefKind::Trait => {
context_before:         }
context_after:             for (pred, span) in tcx.explicit_predicates_of(item).instantiate_identity(tcx) {