@babel/runtime-corejs2

Thanks @amjed-98, @blakewilson, @coelhucas, and @SukkaW for your first PRs!

:bug: Bug Fix

• babel-helper-create-class-features-plugin, babel-plugin-transform-class-properties

  • Fix source maps for private member expressions (@nicolo-ribaudo)

• babel-core, babel-generator, babel-plugin-transform-modules-commonjs

  • Fix source maps for template literals (@nicolo-ribaudo)

• babel-helper-create-class-features-plugin, babel-plugin-proposal-decorators

  • Support undecorated static accessor in anonymous classes (@JLHwung)

  • Fix decorator bare yield await (@JLHwung)

• babel-helpers, babel-plugin-proposal-decorators, babel-runtime-corejs3

  • Fix: throw TypeError if addInitializer is called after finished (@JLHwung)

• babel-parser, babel-plugin-transform-typescript

  • fix: Correctly parse cls.fn<C> = x (@liuxingbaoyu)

:house: Internal

• babel-core, babel-helpers, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

  • Generate helper metadata at build time (@nicolo-ribaudo)

• babel-helpers

  • Add tsconfig.json for @babel/helpers/src/helpers (@nicolo-ribaudo)

• babel-cli, babel-helpers, babel-plugin-external-helpers, babel-plugin-proposal-decorators, babel-plugin-transform-class-properties, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

  • Move all runtime helpers to individual files (@nicolo-ribaudo)

• babel-parser, babel-traverse

  • Statically generate boilerplate for bitfield accessors (@nicolo-ribaudo)

• Other

  • Migrate import assertions syntax (@JLHwung)