15: {x: 15} out of AListExprs
15: {x: 15} out of ACallExpr
15: {x: 15} out of AVardeclExpr
16: {x: 15} out of TId
16: {x: 15} out of TAssign
16: {x: 15} out of AImplicitSelfExpr
16: {x: 15} out of TId
16: {x: 15} out of AQid
16: {x: 15} out of AListExprs
16: {x: 15} out of ACallExpr
16: {x: 15} out of TId
16: {x: 15} out of AQid
16: {x: 16} out of AListExprs
16: {x: 16} out of ACallExpr
16: {x: 16} out of AVarAssignExpr
17: {x: 16} out of TKwvar
17: {x: 16} out of TId
17: {x: 16} out of TAssign
17: {x: 16} out of TId
17: {x: 16} out of AVarExpr
17: {x: 16} out of TPlus
17: {x: 16}, {y: 17} out of TId
17: {x: 16}, {y: 17} out of AVarExpr
17: {x: 16}, {y: 17} out of APlusExpr
17: {x: 16}, {y: 17} out of AVardeclExpr
18: {x: 16}, {y: 17} out of TId
18: {x: 16}, {y: 17} out of TPluseq
18: {x: 16}, {y: 17} out of APlusAssignOp
18: {x: 18}, {y: 17} out of TId
18: {x: 18}, {y: 17} out of AVarExpr
18: {x: 18}, {y: 17} out of AVarReassignExpr
19: {x: 18}, {y: 17} out of AImplicitSelfExpr
19: {x: 18}, {y: 17} out of TId
19: {x: 18}, {y: 17} out of AQid
19: {x: 18}, {y: 17} out of TId
19: {x: 18}, {y: 17} out of AVarExpr
19: {x: 18}, {y: 17} out of AListExprs
19: {x: 18}, {y: 17} out of ACallExpr
19: {x: 18}, {y: 17} out of ABlockExpr
19: {x: 18}, {y: 17} out of AMainMethPropdef
19: {x: 18}, {y: 17} out of AMainClassdef
19: {x: 18}, {y: 17} out of AModule