ref: 9ec8186ac6e6dd9715e542ecf50ae6c29ee6f7aa
dir: /test/link/section-union/different-size.out/
error: Section "different section sizes" is of type ROM0, which cannot be unionized --- error: <stdin>(16): Cannot declare ROM sections as UNION FATAL: <stdin>(16): Cannot create section "different section sizes" (1 error)