Add `--import <module>` flag for pre-loading ESM modules

[Qix-]

Is your feature request related to a problem? Please describe.
-r can be used only on CommonJS modules, as documented here. Pre-loading an .mjs or an ESM module package is currently not possible.

Describe the solution you'd like
Either expansion of -r to support ESM modules (might break some people, not sure the scope of those changes) or the inclusion of a --module, -m <module> flag. Neither the long nor short arguments appear to exist in either Node or v8 according to the above docs (correct me if I'm wrong).

Describe alternatives you've considered
None, I perceive this to be a hole in the CLI option set.

[targos]

@nodejs/modules

[bmeck]

Would love and endorse this (likely under --import instead of --module). It has been tried a few times but async hook tests almost all blow up when you make the bootstrap async instead of the current sync bootstrap. I do not have the time for the fairly hefty testing refactor to make this work but the actual implementation effort is small.

[Qix-]

Agreed, --import is much better - good catch :)

[github-actions]

There has been no activity on this feature request for 5 months and it is unlikely to be implemented. It will be closed 6 months after the last non-automated comment.

For more information on how the project manages feature requests, please consult the feature request management document.

[ljharb]

bump