build: fail on instrumentation errors

nyc was silently failing to instrument new language features,
resulting in a failure to instrument console.js.

Refs: https://github.com/nodejs/node/issues/20952
PR-URL: https://github.com/nodejs/node/pull/21071


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Rebecca Turner <me@re-becca.org>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>