Thread:Project:Support desk/Help:Magic words

On Help:Magic words I can exactly determine when and where  was introduced: Special:Code/MediaWiki/42721 blames CoreParserFunctions.php in SVN revision 42721 (2008-10-28). Now I want to figure out if, when, and where this magic word was removed or conditionally disabled here. How can I solve this without a copy of the sources on my box. If  turns out to be removed Wikitext_parser/Core_parser_functions also has to be updated.