chore: update babel monorepo to v7.12.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@babel/cli (source)	devDependencies	minor	7.11.6 -> 7.12.0
@babel/core (source)	devDependencies	minor	7.11.6 -> 7.12.0
@babel/plugin-transform-runtime	dependencies	minor	7.11.5 -> 7.12.0
@babel/preset-env (source)	dependencies	minor	7.11.5 -> 7.12.0
@babel/runtime (source)	dependencies	minor	7.11.2 -> 7.12.0

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Release Notes

babel/babel

v7.12.0

👓 Spec Compliance

• babel-core, babel-helper-module-transforms, babel-parser, babel-plugin-proposal-export-namespace-from, babel-plugin-syntax-module-string-names, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-types
  • #​12091 String import/export specifier (@​JLHwung)
• babel-parser
  • #​12111 [ts] Throw a syntax error for index signature with declare (@​sosukesuzuki)

🚀 New Feature

• babel-core, babel-generator, babel-parser, babel-plugin-syntax-import-assertions, babel-plugin-syntax-module-attributes, babel-standalone, babel-types
  • #​12139 Parse import-assertions (@​xtuc)
• babel-core, babel-helper-create-class-features-plugin, babel-helper-module-transforms, babel-helper-replace-supers, babel-plugin-proposal-class-static-block, babel-plugin-transform-modules-commonjs, babel-standalone, babel-traverse, babel-types
  • #​12143 Transform class static block (@​JLHwung)
• babel-generator, babel-parser, babel-plugin-syntax-class-static-block, babel-types
  • #​12079 Parse class static block (@​JLHwung)
• babel-generator, babel-parser, babel-types
  • #​12129 Support TypeScript mapped type 'as' clauses (@​existentialism)
  • #​12147 [ts] Add support for the "intrinsic" keyword (@​nicolo-ribaudo)
• babel-parser, babel-types
  • #​12131 [ts] Add support for template interpolations in types (@​nicolo-ribaudo)
• babel-plugin-transform-modules-systemjs
  • #​12163 SystemJS top-level await support (@​guybedford)
• babel-plugin-transform-typescript, babel-preset-typescript
  • #​11950 Add jsxPragmaFrag support to typescript transform (@​JLHwung)
• babel-core, babel-helper-module-transforms, babel-parser, babel-plugin-proposal-export-namespace-from, babel-plugin-syntax-module-string-names, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-types
  • #​12091 String import/export specifier (@​JLHwung)
• babel-core
  • #​11907 Return a list of files that were read from loadPartialConfig (@​devongovett)

🐛 Bug Fix

• babel-parser
  • #​11992 Fix: check if param is assignable when parsing arrow return type annotation (@​JLHwung)
  • #​12167 [ts] Add asserts: false to TSTypePredicate node (@​sosukesuzuki)
  • #​12161 Move check for TSTypeCastExpression to catch another case (@​existentialism)
  • #​12120 Throw a recoverable error for missing initializer in const declaration (@​sosukesuzuki)
  • #​12108 Improve syntax error for class fields in ambient context (@​sosukesuzuki)
  • #​12088 Throw a syntax error for empty type parameter/argument (@​sosukesuzuki)
  • #​12093 Throw an error for a declare class field that have an initializer (@​sosukesuzuki)
  • #​12085 Do not throw an error for optional binding pattern params in function declaration (@​sosukesuzuki)
  • #​12076 Fix invalid setter parse (@​fisker)
  • #​12054 Throw a syntax error for a declare function with a body (@​sosukesuzuki)
  • #​12065 Throw a syntax error for a constructor with type parameters (@​sosukesuzuki)
• babel-plugin-transform-typescript
  • #​12149 fix transform-typescript logic to remove definite fields (@​akphi)
  • #​12122 [transform-typescript] Fix import elision for type exports (@​Amareis)
• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-nullish-coalescing-operator, babel-plugin-proposal-optional-chaining
  • #​12032 Handle cases when ?? and ?. is in binding initializers (@​JLHwung)
• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-preset-react
  • #​12116 add .js extension to react runtime for JSX transform (@​lunaruan)
• babel-traverse, babel-types
  • #​12119 fix: mark Pattern in CatchClause as scope (@​JLHwung)
• babel-generator
  • #​12114 Fix printing TSTypeOperator (@​existentialism)
  • #​12082 Ensure expressions wrapped in parens (@​overlookmotel)
  • #​12081 Fix @babel/generator does not print decorators of private properties (@​zweimach)
  • #​12086 Add sourcemap markings for each line of a string (@​jridgewell)
• babel-plugin-transform-modules-systemjs
  • #​12110 Fix reexporting init-less variable in systemjs (@​JLHwung)
• babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd, babel-plugin-transform-runtime
  • #​11739 [cjs] Skip duplicate reexported bindings in namespace reexports (@​mischnic)
• babel-helper-create-regexp-features-plugin, babel-plugin-transform-unicode-regex
  • #​12077 Bump regexpu-core (@​existentialism)
• babel-plugin-proposal-do-expressions, babel-traverse
  • #​11728 fix(do-expr): SwitchStatement with IfStatement cases (@​barronwei)

💅 Polish

• babel-parser
  • #​12072 [parser] Better error message for missing number exponent (@​iamfotx)
  • #​12061 Throw a syntax error for a parameter properties in not constructor (@​sosukesuzuki)
• babel-helper-compilation-targets, babel-helper-validator-option, babel-preset-env
  • #​12006 refactor: add @​babel/helper-validator-option (@​JLHwung)

🏠 Internal

• babel-cli, babel-helper-transform-fixture-test-runner, babel-traverse
  • #​11797 Replace lodash 'defaults' usage with ES6 Spread initializer (@​jayaddison)
• babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​10853 Specify runtime exports (@​JLHwung)
• babel-core
  • #​11689 Instantiate presets before plugins (@​nicolo-ribaudo)
• babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-numeric-separator, babel-plugin-syntax-import-meta, babel-plugin-syntax-logical-assignment-operators, babel-plugin-syntax-numeric-separator, babel-plugin-transform-modules-systemjs, babel-preset-env, babel-standalone
  • #​12117 Archive plugins (@​JLHwung)
• Other
  • #​12154 chore: bump gulp-cli to 2.3.0 (@​JLHwung)
  • #​12134 Yarn 2.3 (@​nicolo-ribaudo)
  • #​12099 fix: apply terser plugin only on *.min.js (@​JLHwung)
  • #​12098 docs: update build required node version (@​JLHwung)
  • #​12078 Bump Babel deps (@​existentialism)
  • #​12070 chore: pin browserslist version to 4.12.0 (@​JLHwung)
  • #​12063 chore: add git-blame-ignore-revs (@​JLHwung)
  • #​12049 chore: use latest node on ci workflow when possible (@​JLHwung)
• babel-compat-data, babel-preset-env
  • #​12118 chore: bump electron-to-chromium (@​JLHwung)
• babel-parser
  • #​12103 Add missing tests for TypeScript syntax errors (@​sosukesuzuki)
• babel-core, babel-plugin-transform-runtime
  • #​12102 docs: Fix simple typo, preprelease -> pre-release (@​timgates42)
• babel-compat-data
  • #​12044 chore: remove unused dependencies (@​JLHwung)

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