* fix: transform name capturing regex once
* refactor: early return when pattern contains only lookbehind
* chore: simplify test regex
* chore: run test on >=8.0.0
When the `runtime` flag is on (by default), this plugin adds a new helper which wraps the native `RegExp` class to provide groups support. People nees to use a polyfill (I implemented it in core-js) for browsers that don't support ES6 regexps.
