ref: c8e602dec130aba90f46cd462731b53e7e3e3820
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)!