@babel/runtime-corejs2

Thanks @penguingovernor, @sajadtorkamani and @wojtekmaj for their first PRs!

:eyeglasses: Spec Compliance

• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties

  • Add delete obj?.#x.a support (@JLHwung)

• babel-parser, babel-types

  • fix: implement early errors for record and tuple (@JLHwung)

:bug: Bug Fix

• babel-types

  • [regression] Don't validate file.comments in @babel/types (@nicolo-ribaudo)

• babel-plugin-proposal-do-expressions, babel-types

  • fix: do-statementlist behavior (@wlawt)

:nail_care: Polish

• babel-parser

  • Add better parser error when using jsx (@penguingovernor)

• babel-core

  • Refine babel core types (@JLHwung)

:house: Internal

• babel-core, babel-helper-fixtures, babel-standalone, babel-traverse

  • Replace non-inclusive "whitelist" and "blacklist" terms with "allowlist" etc. (@wojtekmaj)

• babel-parser

  • Add @babel/eslint-plugin-development-internal (@kaicataldo)

• babel-core

  • Refine babel core types (@JLHwung)