At this point it's not at all obvious what the benefit of --src-dir having different behaviour to the download behaviour is—we practically only support importing from web-platform-tests at this point, and some people prefer to use --src-dir to avoid having a separate WPT clone managed by import-w3c-tests.
<rdar://problem/114027584>
Pull request: https://github.com/WebKit/WebKit/pull/16887
Committed 267091@main (ecfc5a0bd2a8): <https://commits.webkit.org/267091@main> Reviewed commits have been landed. Closing PR #16887 and removing active labels.