https://integration.wikimedia.org/ci/job/mediawiki-extensions-hhvm/59144/consoleFull:
```
23:12:46 1) ResourcesTest::testMissingMessages
23:12:46 Message 'vector-view-edit' required by 'ext.guidedTour.tour.firstedit' must exist
23:12:46 Failed asserting that false is true.
23:12:46
23:12:46 /mnt/jenkins-workspace/workspace/mediawiki-extensions-hhvm/src/tests/phpunit/structure/ResourcesTest.php:103
23:12:46 /mnt/jenkins-workspace/workspace/mediawiki-extensions-hhvm/src/tests/phpunit/MediaWikiTestCase.php:156
```
https://github.com/wikimedia/mediawiki-extensions-GuidedTour/blob/012d812e4002fb4b0113eb3c02313cdf471ffefa/modules/tours/firsteditve.js#L44
Messy (and blocking the unit test to assert that we don't do this).
@Catrope said to copy the message from the DOM, rather than use {{int:}}.