Browser tests from T199580 failing very often on php7 jobs, but always running on hhvm.
There is on pass on php7.1 in https://gerrit.wikimedia.org/r/#/c/mediawiki/extensions/TemplateWizard/+/476076/
1) TemplateWizard basic use of TemplateWizard: 1 == 0 running chrome AssertionError: 1 == 0 at assertVisibleElementCount (/workspace/src/extensions/TemplateWizard/tests/selenium/specs/TemplateWizard.js:23:9) at Context.<anonymous> (/workspace/src/extensions/TemplateWizard/tests/selenium/specs/TemplateWizard.js:59:3) at Promise.F (/workspace/src/node_modules/core-js/library/modules/_export.js:36:28)