update babylon

[jquense]

Updates babylon for some newer syntax features. The downside here is that its bit stricter about what you can include, so no double decorators and no flow and typescript at the same time. To make up for this i added the ability to pass options parserOptions through to it so a user can configure to their hearts content

[renke]

Hi @jquense

how likely is it that this causes problems for regular users of import-sort?

[jquense]

That's hard to say. I think the most likely place it would affect forks is when they are using decorators in an odd way... Honestly tho I don't know the current existing config is already sort of broken, e.g. Has both typescript and flow enabled, which wouldn't work because their syntax overlaps.

On the flip side as a regular user of import-sort nit having this is not great, we've already forked the parser in order to upgrade to Babel 7 for our app

[renke]

The new parser from Babel 7 will be used in the next release. I also removed the potentially conflicting plugins. The parserOptions is not included, however, I am not sure we really need it.