_enqueueMicrotask should target all browser versions
_enqueueMicrotask should target all browser versions

If there is a dependency on the _enqueueMicrotask it should always
be included regardless of the browser version.

This is because it is a non-standard browser API specific to some polyfills
where efficient async task scheduling is required.

JakeChampion/polyfill-service,mcshaz/polyfill-service,JakeChampion/polyfill-service,jonathan-fielding/polyfill-service,kdzwinel/polyfill-service,jonathan-fielding/polyfill-service,kdzwinel/polyfill-service,mcshaz/polyfill-service,mcshaz/polyfill-service,kdzwinel/polyfill-service,jonathan-fielding/polyfill-service