Bump es-abstract from 1.17.0-next.1 to 1.17.4

[dependabot-preview]

Bumps es-abstract from 1.17.0-next.1 to 1.17.4.

Changelog

Sourced from es-abstract's changelog.

1.17.4 / 2020-01-21

• [Fix] 2015+: add code to handle IE 8’s problems
• [Tests] fix tests for IE 8

1.17.3 / 2020-01-19

• [Fix] ObjectCreate 2015+: Fall back to __proto__ and normal new in older browsers
• [Fix] GetIntrinsic: ensure the allowMissing property actually works on dotted intrinsics

1.17.2 / 2020-01-14

• [Fix] helpers/OwnPropertyKeys: include non-enumerables too

1.17.1 / 2020-01-14

• [Refactor] add OwnPropertyKeys helper, use it in CopyDataProperties
• [Refactor] IteratorClose: remove useless assignment
• [Dev Deps] update eslint, tape, diff

1.17.0 / 2019-12-20

• [New] Split up each operation into its own file (prereleased)
• [Fix] GetIntrinsic: IE 8 has a broken Object.getOwnPropertyDescriptor
• [Fix] object.assign is a runtime dep (prereleased)
• [Refactor] GetIntrinsic: remove the internal property salts, since % already handles that
• [Refactor] GetIntrinsic: further simplification
• [Deps] update is-callable, string.prototype.trimleft, string.prototype.trimright, is-regex
• [Dev Deps] update @ljharb/eslint-config, object-is, object.fromentries, tape
• [Tests] add .eslintignore
• [meta] remove unused Makefile and associated utils
• [meta] only run spackle script in publish (#78) (prereleased)

Commits

• a515608 v1.17.4
• c625ee1 [Tests] fix tests for IE 8
• cd75047 [Fix] 2015+: add code to handle IE 8’s problems:
• 6f4c07d v1.17.3
• 71772e2 [Fix] ObjectCreate 2015+: Fall back to __proto__ and normal new in ol...
• 05a2883 [Fix] GetIntrinsic: ensure the allowMissing property actually works on do...
• 7b0fe4e v1.17.2
• 810b305 [Fix] helpers/OwnPropertyKeys: include non-enumerables too
• 71522e4 v1.17.1
• 8645d63 [Dev Deps] update diff
• Additional commits viewable in compare view

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