Update rollup to the latest version 🚀

[greenkeeper]

Version 0.58.0 of rollup was just published.

Dependency	rollup
Current Version	0.57.1
Type	devDependency

The version 0.58.0 is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

It might be worth looking into these changes and trying to get this project onto the latest version of rollup.

If you have a solid test suite and good coverage, a passing build is a strong indicator that you can take advantage of these changes directly by merging the proposed change into your project. If the build fails or you don’t have such unconditional trust in your tests, this branch is a great starting point for you to work on the update.

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Commits

The new version differs by 112 commits.

• 5f0bed8 0.58.0
• 06f2069 Fix lint error
• bff9955 Merge branch 'preserve-hidden-classes'
• f942d6e Revert most of the source-map update as there the new version contains
• 30928f9 Update source-map dependency
• abf8218 Add proxy layer to prevent direct module or graph access from the ast.
• b75ac43 Use a "dirty" flag when including variables instead of handling return
• 2f494c4 Make sure initialise is all that is necessary to reset a node so that in
• 3e1c6fc Make sure Program nodes are really only included if they have an effect
• 93f75b6 Streamline some remaining forEach and some loops
• 67e4080 Only start another tree-shaking pass if a variable was included;
• 52fb2d7 Make Program a fully functional ast node that will even receive an
• a903b28 Take the module from the parent to avoid a constructor argument
• 4978d7c Clean up variables
• 339f5ab Initialise variables that are not initialised during construction

There are 112 commits in total.

See the full diff

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