syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"Some(LangItem::Sized)"}]}
source_snippet:             Some(LangItem::Sized) => self.sizedness_conditions(self_ty, SizedTraitKind::Sized),
context_before:         let types = match tcx.as_lang_item(trait_def) {
context_after:             Some(LangItem::MetaSized) => {