The ParserOutput object is already reset when state is reset, so there's no
point in setting or unsetting properties on it.
And since the only unit test was deleted, remove the hook for that too.
Change-Id: Idf12365e8c4b14e527d923edc1086bdaf349df32
Leave all public-facing uses of "article" (including classes) because
the extension is remaining named RelatedArticles. Replace all other
instances with "page" for consistency with other extensions.
Bug: T117908
Change-Id: Ib0f258f26b0d11cfe8a598dbd90ff37afbbe36ac
While the related parser function sets the accumulated related pages as
extension data on the parser output
(see RelatedArticles\Hooks::onFuncRelated). The ParserClearState
handler, however, sets the empty list as a property, which is then
stored in the DB.
Changes:
* Make RelatedArticles\Hooks::onParserClearState use
ParserOutput#setExtensionData, mirroring ::onFuncRelated
* Add a unit test for the the handler
Bug: T115698
Change-Id: I3deaf1e8ee78944250c3f26315ee2450b444a035
