ref: 80df6640e35b76c4fa0d67759abfa8517f832b2f
dir: /test/asm/ref-override-bad.err/
error: ref-override-bad.asm(8):
'X' already referenced at ref-override-bad.asm(7)
error: ref-override-bad.asm(13):
'Y' already referenced at ref-override-bad.asm(10)
error: Assembly aborted (2 errors)!