ref: a09f2d4115cd65b4bbe242421bccabf2f8dba25e
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)