ArticleCompileInterface: Use Article::getParserOutput() directly
ArticleCompileInterface: Use Article::getParserOutput() directly

This will try the parser cache, going via the Content object won't.

Change-Id: I3be0e065c6d82162687655c623e939f417a3a608

wikimedia/mediawiki-extensions-PageTriage,wikimedia/mediawiki-extensions-PageTriage,wikimedia/mediawiki-extensions-PageTriage