{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"sym::size_of"}]}
        sym::size_of | sym::align_of | sym::variant_count => (1, 0, vec![], tcx.types.usize),
        sym::breakpoint => (0, 0, vec![], tcx.types.unit),
        sym::size_of_val | sym::align_of_val => {