babel-register run default register with global module cache

[overlookmotel]

Q	A
Fixed Issues?	n/a
Patch: Bug Fix?	Yes
Major: Breaking Change?	No
Minor: New Feature?	No
Tests Added + Pass?	Yes
Documentation PR Link	n/a
Any Dependency Changes?	No
License	MIT

Small follow-up to PR #12665.

This moves the default call to register() from node.js into nodeWrapper.js, so register() executes with global module cache.

In my original implementation, the default call to register() executes with internal module cache, whereas the user calling register( /* options */ ) executes with global module cache.

Right now, it makes no difference either way, as register function contains no code which could call require(). But if this changed in future, this amendment would ensure behaviour is consistent.

Sorry, I should have included this in the previous PR.

[babel-bot]

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[nicolo-ribaudo]

Thanks for the quick follow-up 👍