Update rollup to version 0.38.2 🚀

[greenkeeperio-bot]

Hello lovely humans,

rollup just published its new version 0.38.2.

State	Update 🚀
Dependency	rollup
New version	0.38.2
Type	devDependency

This version is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of rollup.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right?
Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project ✨

You rock!

🌴

---

The new version differs by 99 commits .

• 4b6b6f7 -> v0.38.2
• e1e9eaf Merge pull request #1191 from rollup/gh-1011
• d08a805 prevent irrelevant warning in test
• aefbed6 warn if exporting an IIFE that looks like a function declaration, and wrap in parens if necessary (#1011)
• 1d83cbf Merge branch 'master' of https://github.com/rollup/rollup
• 0d3ab7b use Set rather than Map for deshadowing
• b287370 Merge pull request #1188 from rollup/gh-997
• d249c7e preserve var declarations in dead branches
• 4e6b551 -> v0.38.1
• 3cc109c Merge pull request #1186 from rollup/gh-1176
• b59263e Merge pull request #1179 from kzc/drop-unused-inner-functions-and-classes
• d4a0e6e Merge pull request #1182 from vinkla/patch-1
• 2eebe3d deconflict function expression IDs (#1176)
• 8bd83f0 Simplify repository value
• 2744947 drop unused function and class declarations within functions (#1108, #1178)

There are 99 commits in total. See the full diff.

---

This pull request was created by greenkeeper.io.

_{Tired of seeing this sponsor message? ⚡ greenkeeper upgrade}

[coveralls]

Coverage remained the same at 100.0% when pulling a06fc9e on greenkeeper-rollup-0.38.2 into 0038b35 on master.