Meta: breaking changes/codemod TODOs for Babel 7

[hzoo]

We are already pretty swamped with all the work for v7 (and regular work) but I'd be really amazing if the community could help with creating an upgrade tool

So we already have started a guide for updating tool authors: https://github.com/babel/babel.github.io/blob/master/_posts/2017-03-01-upgrade-to-babel-7-for-tool-authors.md / https://babeljs.io/blog/2017/03/01/upgrade-to-babel-7-for-tool-authors (feel free to note and make a PR there too)

I'm just adding a place for people to post issues they've encountered when trying to update that aren't already documented - each of these could be an opportunity to make a codemod (or it's an actual bug)

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Example:

file.delete has been removed

power-assert-js/babel-plugin-espower@b887dc3 by @twada

- file.delete('espowerAssertionVisitor');
+ file.set('espowerAssertionVisitor', null);

[hzoo]

Another PR that breaks plugin API: babel/babel#5923, docs PR babel/website#1286

[hzoo]

hzoo/gyp.js@a171281 - no changes necessary

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cst/cst#164:

• tokens: true to babylon
• RestProperty/SpreadProperty -> RestElement/SpreadElement 😢

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reduxjs/redux#2550 no changes needed

[hzoo]

styled-components/babel-plugin-styled-components#84
file.opts.filename instead of file.opts.basename

[xtuc]

We need to add them to the breaking changes documented in the blog post. I'll try today if I have some time.

[twada]

power-assert-js/babel-plugin-espower@89a9d7e
file.opts.parserOpts instead of file.parserOpts

[twada]

power-assert-js/babel-plugin-espower@ff72e23
use file.inputMap to handle incoming sourcemaps (file.opts.inputSourceMap has gone away)

[hzoo]

@babel-bot move to babel/babel-upgrade

[hzoo]

Moving to babel/babel-upgrade#59