Update dependency @babel/plugin-proposal-optional-chaining to v7.8.0

This MR contains the following updates:

Package	Type	Update	Change	References
@​babel/plugin-proposal-optional-chaining	dependencies	minor	7.7.5 -> 7.8.0	source

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Release Notes

babel/babel

v7.8.0

Compare Source

👓 Spec Compliance

• babel-parser
  • #​10980 Disallow private name in object elements and TS type elements (@​JLHwung)
  • #​10955 LiteralPropertyName should allow BigIntLiteral (@​JLHwung)
  • #​10953 fix: check await when parsing AsyncArrowBindingIdentifier (@​JLHwung)
  • #​10947 Fix: TopLevelAwait should respect await identifiers defined in sub scope. (@​JLHwung)
  • #​10946 fix: Class Field Initializer should not allow await expression as immediate child (@​JLHwung)
• babel-plugin-proposal-numeric-separator
  • #​10938 StringNumericLiteral does not include NumericLiteralSeparator (@​JLHwung)
• babel-generator, babel-parser, babel-plugin-proposal-private-methods
  • #​10456 [parser] Disallow duplicate and undeclared private names (@​nicolo-ribaudo)

💥 Breaking Change

• babel-types
  • #​10917 (opt-in) Improve @​babel/types with env.BABEL_TYPES_8_BREAKING (@​nicolo-ribaudo)

🚀 New Feature

• babel-standalone
  • #​10821 Merge env-standalone to babel-standalone (@​JLHwung)
• babel-core
  • #​10783 Add babelrc.json support (@​yordis)
  • #​10903 Add support for babel.config.mjs and .babelrc.mjs (@​nicolo-ribaudo)
• babel-compat-data, babel-preset-env-standalone, babel-preset-env
  • #​10811 Add optional-chaining and nullish-coalescing to preset-env (@​Druotic)
• babel-helper-module-transforms, babel-plugin-transform-modules-systemjs
  • #​10780 add allowTopLevelThis option to transform-modules-systemjs (@​JLHwung)
• babel-parser
  • #​10817 enable optional chaining by default in @​babel/parser (@​jackisherwood)
• babel-cli
  • #​10887 --copy-ignored flag added to CLI (@​rajasekarm)
  • #​9144 Add --out-file-extension option to babel-cli (@​eps1lon)
• babel-core, babel-generator, babel-parser
  • #​10819 Enable nullish coalescing by default in @​babel/parser (@​layershifter)
• babel-core, babel-parser
  • #​10843 [parser] enable dynamic import by default (@​AbdulAli19)

🐛 Bug Fix

• babel-node
  • #​10763 Filename detection should respect short flags (@​JLHwung)
• babel-plugin-proposal-numeric-separator
  • #​10938 StringNumericLiteral does not include NumericLiteralSeparator (@​JLHwung)
• babel-preset-env
  • #​10790 Use chrome data when android is absent (@​JLHwung)
  • #​10930 fix: Promise.any requires global.AggregateError (@​JLHwung)
• babel-parser
  • #​10944 When reading a new string, U+2028/2029 should correctly set the new column (@​JLHwung)
  • #​10937 Refactor parseSubscript (@​JLHwung)
  • #​10901 fix: lost leading comment after named import (@​elevatebart)
• babel-traverse
  • #​10949 Override toString in case this function is printed (@​jayenashar)
• babel-helper-module-transforms, babel-plugin-transform-modules-commonjs
  • #​10934 helper-module-transforms: dereference imported template tag (@​ajafff)
• babel-traverse, babel-types
  • #​10912 Fix parameter expression get binding (@​JLHwung)
• babel-core
  • #​10914 @​babel-core: parse should parse only (@​kaicataldo)
• babel-helpers
  • #​10902 fix: Object.getOwnPropertySymbols called on non-object (@​bassaer)

💅 Polish

• babel-node
  • #​9695 Use babel > as prompt in babel-node (@​ZYSzys)
• babel-parser
  • #​10906 refactor: remove inClassProperty parser state (@​JLHwung)

📝 Documentation

• babel-preset-env
  • #​10982 CONTRIBUTING: Update link to plugin-features.js skip ci
• Other
  • #​10973 Added instructions to fork the repo in order to setup. (@​sidntrivedi012)

🏠 Internal

• babel-preset-env
  • #​10983 chore: update corejs fixtures (@​JLHwung)
  • #​10974 chore: update caniuse-usage Chrome 49 related fixtures (@​JLHwung)
  • #​10924 Replace custom "findSuggestion" function with "levenary" (@​nicolo-ribaudo)
• babel-core
  • #​10507 Prepare @​babel/core for asynchronicity (@​nicolo-ribaudo)
• Other
  • #​10979 Reduce false negative cases of typescript parser tests (@​JLHwung)
  • #​10976 Update Test262, Flow and TS parser tests (@​nicolo-ribaudo)
  • #​10964 Bump coverage target from 80% to 90% (@​nicolo-ribaudo)
  • #​10958 Fix recent e2e-vuejs-cli error (@​JLHwung)
  • #​10919 Add integration test: e2e-vue-cli (@​JLHwung)
  • #​10943 chore: update test262 (@​JLHwung)
  • #​10918 chore: refine e2e test scripts (@​JLHwung)
  • #​10905 chore: separate build-standalone with coverage (@​JLHwung)
  • #​10898 Move coverage to GitHub actions (@​JLHwung)
• babel-compat-data, babel-helper-compilation-targets, babel-preset-env
  • #​10899 Extract targets parser and compat data from preset-env (@​nicolo-ribaudo)
• babel-parser
  • #​10950 test: add invalid-lone-import test (@​JLHwung)
  • #​10936 refactor: remove unecessary checkYieldAwaitInDefaultParams (@​JLHwung)
  • #​10935 refactor: remove unused invalidTemplateEscapePosition tokenizer state (@​JLHwung)
  • #​10939 TSTypeCastExpression should not be inside call parameters (@​JLHwung)
  • #​10942 Remove unused parser methods (@​JLHwung)
• Every package
  • #​10849 chore: specify package type skip-ci

↩ Revert

• babel-cli
  • #​10923 fix: minified should not accept optional argument (@​JLHwung)

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