Node.js v6: Can't pass null to path module functions

[strawbrary]

In Node.js v6, all path functions will now throw an error if they receive a non-string path argument. eslint-import-resolver-node returns path: null for core modules which causes fileExistsWithCaseSync to throw an error.

I wasn't sure if it would be better to make the change in the resolver or the plugin itself so I'm just opening an issue about this for now.

[benmosher]

Oh, wild. Good to know.

We probably ought to go ahead and open a PR with v6 in the Travis config and start getting ready! Thanks!

[benmosher]

Also, for future reference: the null path from the resolver is part of the spec. The plugin should exit early and not pass it to the path functions.

[strawbrary]

Got it, thanks for the info. v6 isn't out officially yet so I'm not sure if there's a way to get Travis to build with it, but they're aiming to release it tomorrow I believe. In the meantime the rc builds are here: https://nodejs.org/download/rc/

[benmosher]

fixed in #273