ref: 17752d7094e74752d5fc1efb2fc81f7efb3e5a2e dir: /test/link/section-union/different-syntaxes.asm/
IF !DEF(SECOND) INSTR equs "sbc a" ELSE INSTR equs "db $9f" ENDC SECTION UNION "different syntaxes", ROM0 INSTR PURGE INSTR