ref: b06e3b239d128826a33c97f38217cda0c25fee54
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)!