[RRFC] Ensure that binaries defined by the current package are recognized as available binaries inside itself by npm run

Motivation ("The Why")

The motivations behind this is that it seems natural to me, even if a bit niche, and scripts defined like this are the cleanest possibly way to write them that I can think of:

{
  "name": "pkg",
  "bin": "./src/index.js",
  "scripts": {
     "something": "pkg something"
  }
}

Notice how the something script inside pkg references the pkg bin, i.e. itself.

Example

See above.

How

Current Behaviour

Currently running an npm run something leads to an error saying that pkg has not been found.

Desired Behaviour

npm run should take into consideration the binaries defined by the current package, and consider them as available binaries too.

References

• Original npm/cli issue: https://github.com/npm/cli/issues/6141

Start by reading the motivation, example package manifest, and the linked original npm/cli issue #6141. Investigate how npm run exposes package binaries and determine the proposal needed so a package's own bin is available to its scripts; done means the behavior is specified clearly enough for implementation.