ref: d29057e747ea96c9398e516ec76a0e141f0a3feb
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)