syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"self.collector.opaques.extend(items);"}]}
source_snippet:                     self.collector.opaques.extend(items);
context_before:                     let items = self.collector.tcx.opaque_types_defined_by(id);
context_after:                 }