[Wikitech-l] Extension test failures on PHP 7.1

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Hi,

In preparation for Wikimedia production switching to PHP 7.2, we need to get CI running using 7.2 (and for the rest of the MediaWiki world too!). But before we can do that, we'll need 7.1 to be passing first. The following extensions are currently failing tests on 7.1:

* FileImporter: T206286 * Kartographer: T206293 * Wikibase: T205958 * WikibaseLexeme: T206100 * WikibaseMediaInfo: T206281

And one non-Wikimedia deployed extension: * MultiMaps: T206291

Thank you to James F, Matma Rex and Umherirrender for already fixing some other extensions that were failing.

I'd like to make 7.1 tests voting by the end of the week, and would appreciate maintainers fixing their extensions before then. You can currently trigger 7.1 tests to verify fixes by commenting "check experimental" in Gerrit.

Thanks, - -- Kunal / Legoktm