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perl -MO=Concise -e '{package int}; my int $y' 8 <@> leave[1 ref] vKP/REFC ->(end) 1 <0> enter ->2 ... 4 <0> stub v ->5 6 <;> nextstate(main 2 -e:1) v:{ ->7 7 <0> padsv[$y:2,3] vM/LVINTRO ->8