Module resolution failure when using "#/" in `imports` about node

[aduh95]

The spec says it should throw an error:

node/doc/api/esm.md

Lines 959 to 963 in 2f01f02

	**PACKAGE\_IMPORTS\_RESOLVE**(_specifier_, _parentURL_, _conditions_)
	> 1. Assert: _specifier_ begins with _"#"_.
	> 2. If _specifier_ is exactly equal to _"#"_ or starts with _"#/"_, then
	> 1. Throw an _Invalid Module Specifier_ error.

After a bit of digging, I found this comment that's related: #34117 (comment)

/cc @nodejs/loaders

[guybedford]

Yes, this is disallowed. Instead write:

{
  "imports": {
    "#*": "./*"
  }
}

If there's a strong argument to allow these my note in that comment still stands.

[jakezatecky]

Keeping the current restriction is not much of a problem if the main documentation includes some warning or if the error message for using #/ was unique. As it stands, Node throws the generic error that applies to any failed module resolution and gives no indication that #/ itself is invalid.