SQL PARSER - Add Ignore to SET SQL command

hi guys , could we have a SET IGNORE to change errors to warnings?
example...

SET sql_mode='ALLOW_INVALID_DATES,IPES_AS_CONCAT',character_set_client='latin1',

    character_set_connection='latin1',character_set_database='latin1',

    character_set_results='latin1',character_set_server='latin1',

    @@session.query_cache_strip_comAments=on

since the "@@session.query_cache_strip_comAments" doesn't exists

/* Error SQL (1193): Unknown system variable 'query_cache_strip_comAments' */

the SET isn't executed, but i want to execute it no problem about this unknown variable...

like INSERT IGNORE INTO , with duplicate rows

the IGNORE will only change variables that exists, and report warnings about variables that don't exists