module: Fix bug for undefined CJS dependency loading from loader hook file

It can be useful to load dependencies as part of the loader hook definition file. This fixes a bug where import x from 'x' would always return x as undefined if the import was made in a loader hooks definition module.

A parallel change to the CJS loading injection process which happens in https://github.com/nodejs/node/blob/master/lib/module.js#L521 meant that the CJS module wasn't being injected into the correct loader instance, which is corrected here with a test.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines

Affected core subsystem(s)

esmodules