* chore: rename test folder
* chore: add test case
* fix: use chrome support data when android is absent
* chore: add type annotation
* chore: add testcases last 2 versions not ie
* chore: bump browerslist to v4.8.2
* chore: update test fixtures
* chore: update test fixtures
While it isn't technically needed because regenerator already handles
async functions, it doesn't play well with the Promise detection logic
used by @babel/preset-env's useBuiltIns and @babel/transform-runtime.
The plugin exclusion logic isn't removed, because
1) it will be useful when merging @babel/preset-modules
into @babel/preset-env
2) if/when regenerator will support injecting a custom promise,
we can enable this optimization again
