Bump core-js from 3.2.1 to 3.4.8

[dependabot-preview]

Bumps core-js from 3.2.1 to 3.4.8.

Changelog

Sourced from core-js's changelog.

3.4.8 - 2019.12.09

• Added one more workaround for broken in previous versions inspectSource helper, #719
• Added Opera Mobile compat data
• Updated Samsung Internet, iOS, old Node and Android compat data mapping
• es.string.match-all marked as completely supported in FF73
• Generate core-js-compat/modules since often we need just the list of core-js modules

2.6.11 [LEGACY] - 2019.12.09

• Returned usage of node -e in the postinstall scripts for better cross-platform compatibility, #582
• Improved CI detection in the postinstall script, #707

3.4.7 - 2019.12.03

• Fixed an NPM publishing issue

3.4.6 - 2019.12.03

• Improved iOS compat data - added missed mapping iOS 12.2 -> Safari 12.1, added bug fixes from patch releases
• Added Safari 13.1 compat data
• Added missed in core-js-compat helpers ie_mob normalization
• Normalize the result of getModulesListForTargetVersion core-js-compat helper
• Improved CI detection in the postinstall script, #707

3.4.5 - 2019.11.28

• Detect incorrect order of operations in Object.assign, MS Edge bug
• Detect usage of ToLength in Array#{ filter, map }, FF48-49 and MS Edge 14- issues
• Detect incorrect MS Edge 17-18 Reflect.set which allows setting the property to object with non-writable property on the prototype
• Fixed inspectSource helper with multiple core-js copies and some related features like some edge cases of Promise feature detection

3.4.4 - 2019.11.27

• Added feature detection for Safari non-generic Promise#finally bug (critical for core-js-pure)
• Fixed missed esnext.string.code-points in core-js/features/string entry point
• Updated Iterator proposal feature detection for the case of non-standard Iterator in FF44-

3.4.3 - 2019.11.26

• Fixed missed es.json.stringify and some modules from iteration helpers proposal in some entry points (includes the root entry point)
• Added a workaround of String#{ endsWith, startsWith } MDN polyfills bugs, #702
• Fixed .size property descriptor of Map / Set in the pure version
• Refactoring, some internal improvements

3.4.2 - 2019.11.22

• Don't use polyfilled symbols as internal uids, a workaround for some incorrect use cases
• String#replaceAll is available only in nightly FF builds
• Improved Promise feature detection for the case of V8 6.6 with multiple core-js copies
• Some internals optimizations
• Added Node 13.2 -> V8 7.9 compat data mapping
• Returned usage of node -e in postinstall scripts

3.4.1 - 2019.11.12

• Throw when (Async)Iterator#flatMap mapper returns a non-iterable, per tc39/proposal-iterator-helpers/55 and tc39/proposal-iterator-helpers/59
• Removed own AggregateError#toString, per tc39/proposal-promise-any/49
• Global core-js Promise polyfill passes feature detection in the pure versions

... (truncated)

Commits

• 10ccf67 3.4.8
• e937015 update the changelog
• 6a33d1e mark es.string.match-all as supported in FF73
• 9b1c768 improve ancient Node compat data
• 2ddbf97 update dependencies
• 67ab55b add io.js as Node versions
• 9611749 update Node compat data mapping
• a22e656 map some old Android Browser versions to Chrome with the same WebKit versions
• b799c43 add one more missed Samsung mapping
• a95116f update dependencies, fix a wrong link
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #29.