ref: b3c0db218d564bbc9a801d8635591fd969c36e82
dir: /test/link/section-union/different-syntaxes.out/
error: Section "different syntaxes" is of type ROM0, which cannot be unionized
---
ERROR: <stdin>(18):
Cannot declare ROM sections as UNION
FATAL: <stdin>(18):
Cannot create section "different syntaxes" (1 error)