zone.js: remove legacy files and access to deep imports (#51752) (a8efc60)
BREAKING CHANGES
zone.js: Deep and legacy dist/ imports like zone.js/bundles/zone-testing.js and zone.js/dist/zone are no longer allowed. zone-testing-bundle and zone-testing-node-bundle are also no longer part of the package.
The proper way to import zone.js and zone.js/testing is:
