ref: 7e127a4e52118fe469e70b6f1980ca18c42822d4
dir: /test/link/section-union/data-overlay.out/
error: Section "overlaid data" is of type ROM0, which cannot be unionized
---
ERROR: <stdin>(18):
Cannot declare ROM sections as UNION
FATAL: <stdin>(18):
Cannot create section "overlaid data" (1 error)