Code linking - don't link to member methods unless syntax is a member method

Migrated issue

Reported by: pillarsdotnet

API page: http://api.drupal.org/api/drupal/includes--theme.inc/function/theme_render_template/7

In the code, the extract function is linked to http://api.drupal.org/api/drupal/includes--archiver.inc/function/ArchiverInterface%3A%3Aextract/7.

I believe it should rather be linked to http://php.net/extract.