@babel/runtime-corejs2

Thanks @MrBrain295 for your first PR!

:bug: Bug Fix

• babel-plugin-transform-async-to-generator, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-jsx

  • Lazily initialize and cache constant JSX elements (@nicolo-ribaudo)

• babel-helper-create-class-features-plugin, babel-plugin-proposal-private-methods

  • Ensure static private method init run before static property (@JLHwung)

  • Evaluate object and initializer when setting a private method (@JLHwung)

• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-methods

  • Class static private field destructure set (@JLHwung)

• babel-parser

  • (ts) Raise syntax error for an abstract method that has body (@sosukesuzuki)

• babel-helper-compilation-targets, babel-preset-env

  • Fix esmodules: true without specified browsers (@nicolo-ribaudo)

:nail_care: Polish

• Other

  • Suggest using babel.config.json when linting dependencies (@nicolo-ribaudo)

• babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-methods

  • check descriptor before private field access (@JLHwung)

:house: Internal

• babel-helper-fixtures

  • Optionally enable external-helpers in tests (@jridgewell)

• Every package

  • Avoid using CJS globals in internal source files (@nicolo-ribaudo)

• babel-helper-transform-fixture-test-runner, babel-highlight, babel-plugin-transform-runtime, babel-preset-env

  • [internal] Use the Node.js behavior for default imports (@nicolo-ribaudo)