build(deps-dev): bump rollup from 1.27.6 to 1.27.8

[dependabot-preview]

Bumps rollup from 1.27.6 to 1.27.8.

Release notes

Sourced from rollup's releases.

v1.27.8

2019-12-02

Bug Fixes

• Deoptimize objects when a method is called on them to make sure modifications via "this" are observed (#3266)

Pull Requests

• #3266: Workaround for various object literal mutation bugs (@​kzc)

v1.27.7

2019-12-01

Bug Fixes

• Fix a scenario where a reassignments to computed properties were not tracked (#3267)

Pull Requests

• #3267: Fix incomplete computed property deoptimization (@​lukastaegert)

Changelog

Sourced from rollup's changelog.

1.27.8

2019-12-02

Bug Fixes

• Deoptimize objects when a method is called on them to make sure modifications via "this" are observed (#3266)

Pull Requests

• #3266: Workaround for various object literal mutation bugs (@​kzc)

1.27.7

2019-12-01

Bug Fixes

• Fix a scenario where a reassignments to computed properties were not tracked (#3267)

Pull Requests

• #3267: Fix incomplete computed property deoptimization (@​lukastaegert)

Commits

• 195bd62 1.27.8
• f99054f Update changelog
• 3e0aa46 workaround for various object literal mutation bugs (#3266)
• c753a7f 1.27.7
• 1b8a3de Update changelog
• d5651be Fix incomplete computed property deoptimization (#3267)
• d7e3993 Update changelog
• See full diff in compare view

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