Update babel monorepo to v7.1.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
@babel/cli	devDependencies	patch	7.1.0 -> 7.1.2	homepage, source
@babel/core	devDependencies	patch	7.1.0 -> 7.1.2	homepage, source

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Release Notes

babel/babel

v7.1.2

Compare Source

Same as v7.1.1, except compiled against Node 6 instead of Node 8 by accident (e.g had async functions).

v7.1.1

Compare Source

EDIT: had a publish issue here as well where it compiled against Node 8 instead of Node 6 so 7.1.2 will fix this.
Also force publish @babel/runtime and @babel/runtime-corejs2. We need to fix the publishing around that since Lerna doesn't pickup the @babel/helpers changes as there is no "dependency"

🐛 Bug Fix

• babel-generator, babel-parser, babel-types
  • #​8755 TypeScript: reserve unknown as TSUnknownKeyword. (@​g-plane)
• babel-plugin-transform-destructuring
  • #​8535 Do not unpack array patterns that update a referenced binding. (@​nicolo-ribaudo)
• babel-plugin-proposal-decorators
  • #​8742 [decorators] Support async and generator methods. (@​nicolo-ribaudo)
• babel-helpers, babel-plugin-proposal-decorators
  • #​8761 [decorators] Fields are enumerable. (@​nicolo-ribaudo)
• babel-generator
  • #​8751 Fix some missing parens cases with OptionalMemberExpression in generator. (@​existentialism)
  • #​8727 Handle throw expressions in generator. (@​existentialism)

🏠 Internal

• Other
  • #​8780 Run test262 tests for exportNamespaceFrom. (@​existentialism)
• babel-helper-transform-fixture-test-runner
  • #​8768 Use babel-check-duplicated-nodes. (@​nicolo-ribaudo)

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