syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"Some(LangItem::MetaSized)"}]}
source_snippet:             Some(LangItem::MetaSized) => {
context_before:             Some(LangItem::Sized) => self.sizedness_conditions(self_ty, SizedTraitKind::Sized),
context_after:                 self.sizedness_conditions(self_ty, SizedTraitKind::MetaSized)