 🏗 Additional updates for gulp task `coverage-map` (#29654)
 🏗 Additional updates for gulp task `coverage-map` (#29654)

* some feature requests

* scope error in page.evaluate()

* Update build-system/tasks/coverage-map/index.js

Co-authored-by: Ryan Cebulko <ea3cd978650417470535f3a4725b6b5042a6ab59@cebulko.com>

* nobuild

Co-authored-by: Derek Tse <a939aa51cf9feb58c0ca6cbf48e99eed426f3878@google.com>
Co-authored-by: Ryan Cebulko <ea3cd978650417470535f3a4725b6b5042a6ab59@cebulko.com>
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