[dwds_test_common] Resolve package root via the package config - #2876

[dwds_test_common] Resolve package root via the package config#2876

Markzipan merged 1 commit into

dart-lang:maindart-lang/webdev:mainfrom

Markzipan:fix-dwds-test-common-rootMarkzipan/webdev:fix-dwds-test-common-rootCopy head branch name to clipboard