{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"try_as_const_integral(v).and_then(|v|"}]}
        try_as_const_integral(v).and_then(|v| unsafe {
    fn const_to_opt_uint(&self, v: &'ll Value) -> Option<u64> {
            let mut i = 0u64;