tree ef52c1054adc7758e5460f6546dbee2dd7c2b964
parent df614634b41565888d520222cdc4335079b5a0c2
author Takuto Wada <takuto.wada@gmail.com> 1531299904 +0900
committer Michael Ficarra <github@michael.ficarra.me> 1531502534 -0700

Support async generator method introduced in ES2018

refs: https://tc39.github.io/proposal-async-iteration/
refs: https://tc39.github.io/proposal-async-iteration/#prod-AsyncGeneratorMethod