syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":".iter_identity_copied()"}]}
source_snippet:                             .iter_identity_copied()
context_before:                         tcx.explicit_super_predicates_of(trait_pred.def_id())
context_after:                             .map(|(super_clause, span)| {