syntax_data: {"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"for"}]}
source_snippet:             for (pred, span) in tcx.explicit_predicates_of(item).instantiate_identity(tcx) {
context_before:         DefKind::TraitAlias | DefKind::Trait => {
context_after:                 try_visit!(visitor.visit(span, pred));