{"ast_node_type":"import","tokens":[{"end":91,"kind":"keyword","start":0,"text":"//"}]}
            // make this code only run with -Zverbose-internals because it is probably slow
        if self.tcx().sess.verbose_internals() {
            if let Ok(lint_str) = self.tcx.sess.source_map().span_to_snippet(expr.span) {