ref: b51e1c7c2c4ce2769f01e016967d0115893a7a88
dir: /test/asm/reference-undefined-equs.err/
ERROR: reference-undefined-equs.asm(4):
's1' already referenced at reference-undefined-equs.asm(2)
ERROR: reference-undefined-equs.asm(5):
's2' already referenced at reference-undefined-equs.asm(2)
error: Assembly aborted (2 errors)!