benchmark,doc,lib,test: prepare for padding lint rule

Upcoming lint rule will require a blank line between consecutive
functions. Add it in the places where we don't have it already.

PR-URL: https://github.com/nodejs/node/pull/30696
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

lib/internal/assert.js

@@ -7,6 +7,7 @@ function lazyError() {
   }
   return error;
 }
+
 function assert(value, message) {
   if (!value) {
     const ERR_INTERNAL_ASSERTION = lazyError();