ref: b51e1c7c2c4ce2769f01e016967d0115893a7a88
dir: /test/asm/empty-data-directive.err/
warning: empty-data-directive.asm(6): [-Wempty-data-directive] DB directive without data in ROM warning: empty-data-directive.asm(7): [-Wempty-data-directive] DW directive without data in ROM warning: empty-data-directive.asm(8): [-Wempty-data-directive] DL directive without data in ROM