syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"&ExprKind::ZstLiteral"}]}
source_snippet:         &ExprKind::ZstLiteral { user_ty: _ } => ty::Const::zero_sized(tcx, node.ty),
context_before:         }
context_after:         &ExprKind::NamedConst { def_id, args, user_ty: _ } => {