@babel/runtime-corejs2

Thanks @CommanderRoot, @fargito and @swandir for your first PRs!

:bug: Bug Fix

• babel-parser, babel-standalone

  • Restore numeric seaprators support in @babel/standalone (@nicolo-ribaudo)

• babel-traverse

  • Fix NodePath.referencesImport for JSXMemberExpression (@swandir)

• babel-plugin-proposal-decorators

  • [2021-12] Support class decorators in export declarations (@nicolo-ribaudo)

  • fix: forward accessor proxy getter results (@JLHwung)

• babel-parser

  • fix: parse type parameters within correct context (@JLHwung)

• babel-generator, babel-parser

  • Parenthesize non-simple decorator expression (@JLHwung)

• babel-plugin-transform-classes, babel-plugin-transform-modules-commonjs, babel-preset-env

  • Align named imports behavior in .mjs and .js files (@nicolo-ribaudo)

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

  • [setPublicClassFields] Use define for static name/length (@nicolo-ribaudo)

:nail_care: Polish

• babel-plugin-proposal-decorators

  • Add missing semicolons in 2021-12 decorators output (@nicolo-ribaudo)

:house: Internal

• Other

  • Use jest-light-runner from npm (@nicolo-ribaudo)

• babel-cli

  • Fix flaky @babel/cli test (@JLHwung)

• babel-helper-function-name, babel-helper-get-function-arity

  • Inline @babel/helper-get-function-arity package (@nicolo-ribaudo)

• babel-helpers

  • Remove unused @babel/helpers code (@nicolo-ribaudo)

• babel-core, babel-highlight, babel-parser

  • refactor: replace deprecated String.prototype.substr() (@CommanderRoot)