syntax_data: {"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"self.dcx().span_delayed_bug(self.def_span(item_id),"}]}
source_snippet:                 self.dcx().span_delayed_bug(self.def_span(item_id), "drop is not a function");
context_before:             if self.def_kind(item_id) != DefKind::AssocFn {
context_after:                 continue;