ref: e8d8ae4c787977635a37991c2e4168001470b3ed dir: /test/link/section-union/data-overlay.asm/
IF !DEF(SECOND) DATA equs "ds 4" ELSE DATA equs "db $aa, $bb, $cc, $dd" ENDC SECTION UNION "overlaid data", ROM0 DATA PURGE DATA