@babel/runtime-corejs2

Thanks @H0onnn, @jkup and @SreeXD for your first pull requests!

:eyeglasses: Spec Compliance

• babel-parser

  • Do not use strict mode in TS declare (@liuxingbaoyu)

:bug: Bug Fix

• babel-generator

  • Correctly print parens around in in for heads (@nicolo-ribaudo)

  • Fix printing of comments in await using (@nicolo-ribaudo)

  • fix typescript code generation for yield expression inside type expre… (@SreeXD)

• babel-parser

  • Disallow destructuring assignment in using declarations (@H0onnn)

  • fix: do not add .value: undefined to regexp literals (@liuxingbaoyu)

• babel-types

  • Remove boolean props from ObjectTypeInternalSlot visitor keys (@nicolo-ribaudo)

• babel-plugin-transform-typescript

  • fix: Correctly handle export import x = (@liuxingbaoyu)

:nail_care: Polish

• babel-generator

  • Avoid unnecessary parens around async in for await (@nicolo-ribaudo)

• babel-traverse

  • Avoid checking Scope.globals multiple times (@liuxingbaoyu)