RemexHtml is going to be the default tidy implementation soon, so we should run our parser tests with it.
This also happens to side-step the problem of libtidy in Debian stretch being updated and providing different results from Jessie and before.
Extensions that will probably need updates: https://codesearch.wmflabs.org/extensions/?q=html(%2Fphp)%3F%5C%2Btidy&i=nope&files=&repos=
Change 409432 had a related patch set uploaded (by Legoktm; owner: Legoktm):
[mediawiki/core@master] WIP: Use RemexHtml as the tidy implementation for parser tests
Change 414021 had a related patch set uploaded (by Legoktm; owner: Legoktm):
[mediawiki/extensions/InputBox@master] Update parser tests for RemexHtml as tidy implementation
Change 414020 had a related patch set uploaded (by Legoktm; owner: Legoktm):
[mediawiki/extensions/SyntaxHighlight_GeSHi@master] Update parser tests for RemexHtml as tidy implementation
Change 415993 had a related patch set uploaded (by Legoktm; owner: Legoktm):
[mediawiki/extensions/TimedMediaHandler@master] Update parser tests for RemexHtml as tidy implementation
Change 415993 merged by Jforrester:
[mediawiki/extensions/TimedMediaHandler@master] Update parser tests for RemexHtml as tidy implementation
Change 409432 merged by jenkins-bot:
[mediawiki/core@master] Use RemexHtml as the tidy implementation for parser tests
Change 414021 merged by jenkins-bot:
[mediawiki/extensions/InputBox@master] Update parser tests for RemexHtml as tidy implementation
Change 414020 merged by jenkins-bot:
[mediawiki/extensions/SyntaxHighlight_GeSHi@master] Update parser tests for RemexHtml as tidy implementation
Yep :-) I already announced this as part of https://lists.wikimedia.org/pipermail/wikitech-l/2018-March/089605.html and I'll call it out again when I flip the PHP 7 switch later this week.