syntax_data: {"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"trace!(?assoc);"}]}
source_snippet:                             trace!(?assoc);
context_before:                         for &assoc in self.tcx.associated_items(parent).in_definition_order() {
context_after:                             if assoc.trait_item_def_id != Some(alias_ty.def_id) {