Refs #6248 - HHVM compatibility - The required parameter $vars = array() is placed after an optional one.
Refs #6248 - HHVM compatibility - Corrected extender_url_handler behavior
Refs #6248 - HHVM compatibility - The variable $site_guid is not declared.
Refs #6248 - HHVM compatibility - The call _elgg_session_boot(NULL, NULL, NULL) has too many arguments.
Refs #6248 - HHVM compatibility - The call elgg_dump($msg, false, 'WARNING') has too many arguments.
Refs #6248 - HHVM compatibility - The constant mts is not declared.
Refs #6248 - HHVM compatibility - Undeclared variables
Refs #6248 - HHVM compatibility - elgg_view_deprecated requires all parameters
Merge pull request #6282 from Srokap/hhvm

Refs #6248 - HHVM compatibility