ref: 176a57a1e96c53513b82b093b105bb9b4f92da6c
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 errors)