Update babel monorepo

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@babel/core (source)	7.20.12 -> 7.21.8
@babel/preset-env (source)	7.20.2 -> 7.21.5

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Release Notes

babel/babel

v7.21.8

Compare Source

👓 Spec Compliance

• babel-parser
  • #​15602 Remove using await restriction in explicitResourceManagement (@​JLHwung)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin
  • #​15605 Fix backward compat for semver checks in class&regexp feat plugins (@​nicolo-ribaudo)

v7.21.5

Compare Source

👓 Spec Compliance

• babel-generator, babel-parser, babel-types
  • #​15539 fix: Remove mixins and implements for DeclareInterface and InterfaceDeclaration (@​liuxingbaoyu)

🐛 Bug Fix

• babel-core, babel-generator, babel-plugin-transform-modules-commonjs, babel-plugin-transform-react-jsx
  • #​15515 fix: ) position with createParenthesizedExpressions (@​liuxingbaoyu)
• babel-preset-env
  • #​15580 Add syntax import meta to preset env (@​JLHwung)

💅 Polish

• babel-types
  • #​15546 Improve the layout of generated validators (@​liuxingbaoyu)
• babel-core
  • #​15535 Use lt instead of lte to check TS version for .cts config (@​nicolo-ribaudo)

🏠 Internal

• babel-core
  • #​15575 Use synchronous import.meta.resolve (@​nicolo-ribaudo)
• babel-helper-fixtures, babel-preset-typescript
  • #​15568 Handle .overrides and .env when resolving plugins/presets from fixture options (@​JLHwung)
• babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin
  • #​15548 Use semver package to compare versions (@​nicolo-ribaudo)

v7.21.4

Compare Source

🐛 Bug Fix

• babel-core, babel-helper-module-imports, babel-preset-typescript
  • #​15478 Fix support for import/export in .cts files (@​liuxingbaoyu)
• babel-generator
  • #​15496 Fix compact printing of non-null assertion operators (@​rtsao)

💅 Polish

• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-transform-typescript, babel-traverse
  • #​15427 Fix moving comments of removed nodes (@​nicolo-ribaudo)

🏠 Internal

• Other
  • #​15519 Update Prettier integration test (@​fisker)
• babel-parser
  • #​15510 refactor: introduce lookaheadInLineCharCode (@​JLHwung)
• babel-code-frame, babel-highlight
  • #​15499 Polish babel-code-frame highlight test (@​JLHwung)

v7.21.3

Compare Source

👓 Spec Compliance

• babel-parser
  • #​15479 disallow mixins/implements in flow interface (@​JLHwung)

🐛 Bug Fix

• babel-parser
  • #​15423 [ts] Allow keywords in tuple labels (@​Harpica)
• babel-plugin-transform-typescript
  • #​15489 Register var decls generated by import ... = TS transform (@​amoeller)
  • #​15494 fix: Consider export { type foo } as type-only usage (@​magic-akari)

💅 Polish

• babel-traverse, babel-types
  • #​15484 Skip node deprecation warnings when used by an old @babel package (@​nicolo-ribaudo)
• babel-generator
  • #​15480 chore: Improve jsonCompatibleStrings deprecation (@​liuxingbaoyu)

🏠 Internal

• #​15465 Add ESLint-readable package name (@​nzakas)

🔬 Output optimization

• babel-plugin-transform-typescript, babel-preset-typescript
  • #​15467 Optimize TS enums output (@​liuxingbaoyu)

v7.21.0

Compare Source

🚀 New Feature

• babel-core, babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-methods, babel-plugin-proposal-private-property-in-object
  • #​15435 feat: Implement privateFieldsAsSymbols assumption for classes (@​fwienber)
• babel-helper-create-regexp-features-plugin, babel-plugin-proposal-regexp-modifiers, babel-standalone
  • #​15226 feat: Support regexp modifiers proposal (@​liuxingbaoyu)
• babel-cli, babel-core, babel-generator, babel-plugin-transform-destructuring, babel-plugin-transform-modules-commonjs, babel-plugin-transform-react-jsx, babel-traverse
  • #​15022 feat: Generate sourcemaps of friendly call frames (@​liuxingbaoyu)
• babel-parser, babel-types
  • #​15384 [ts] Support const modifier in type parameters (@​nicolo-ribaudo)
• babel-generator, babel-helpers, babel-parser, babel-plugin-proposal-decorators, babel-plugin-syntax-decorators, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​15405 Implement decorators as presented at 2023-01 TC39 meeting (@​nicolo-ribaudo)
• babel-parser
  • #​15114 Parser option to allow new.target outside functions (@​overlookmotel)
  • #​15320 Add annexb: false parser option to disable Annex B (@​nicolo-ribaudo)
• babel-core
  • #​15283 feat: Support .cts as configuration file (@​liuxingbaoyu)
• babel-generator, babel-parser, babel-plugin-transform-typescript
  • #​15381 [ts] Support export type * from (@​nicolo-ribaudo)

🐛 Bug Fix

• babel-plugin-transform-typescript
  • #​15379 [ts5.0] Better inlining of constants in enums (@​liuxingbaoyu)
• babel-core
  • #​15366 handling circular/shared structures in deep-clone (@​azizghuloum)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-class-static-block, babel-plugin-proposal-private-methods, babel-plugin-transform-classes, babel-plugin-transform-new-target
  • #​15406 Preserve class elements comments in class transform (@​JLHwung)
• babel-parser, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-types
  • #​15414 [ts] Fix restrictions for optional parameters (@​nicolo-ribaudo)

💅 Polish

• babel-parser
  • #​15400 polish: improve "await as identifier" error in modules (@​JLHwung)

🏠 Internal

• babel-core
  • #​15137 Improve CJS compat with ESM-based @babel/core (@​nicolo-ribaudo)

🔬 Output optimization

• babel-plugin-transform-typescript
  • #​15418 [ts] Handle exponentiation operator in constant folding (@​ehoogeveen-medweb)

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