It is difficult to distinguish this method from OutputPage::addJsConfigVars()
in code search:
https://codesearch.wmcloud.org/deployed/?q=%5BOo%5Dut%28put%29%3F%28%5C%28%5C%29%29%3F-%3EgetCategories%5C%28&files=&excludeFiles=&repos=
We generally try to replace $output with $parserOutput or $pOutput
as we touch code to improve the ability of codesearch to dig up
deprecated ParserOutput methods.
Bug: T305161
Depends-On: I02dd4f61c43c225b0ef6dc51c3e4f9d967a0a272
Depends-On: I61d2d77591579d825ad9d37f902e40366be55dd6
Depends-On: I91155106b7a9e10d3334f95ba4936d02851bfb11
Depends-On: Iaca745c79d9587571af03b23b21d76a6cba0ebf1
Depends-On: Id10a171c44411b1233ee4d6cf8fbd3dc57744eef
Depends-On: I47a25c011d9bd4b1a15dda4e673e32c25eb64f2b
Depends-On: I683fc768aba50b801f46467fcfa1668fa8731ea6
Change-Id: I5a2ac1c99b8b199102e12f0d32dd6ec5cdc24054
d20663259f