=== after object creation ===
x.q:    1
x[3]:   3
x[4]:   4
x[50]:  undefined
x.p1:   test
x.p2:   3
x["m"]: undefined

=== after adding new property to parent ===
x.q:    1
x[3]:   3
x[4]:   4
x[50]:  undefined
x.p1:   test
x.p2:   3
x["m"]: 14

=== after modifying constructor's prototype ===
x.q:    1
x[3]:   3
x[4]:   4
x[50]:  undefined
x.p1:   test
x.p2:   3
x["m"]: 14

=== after modifying parent ===
x.q:    1
x[3]:   3
x[4]:   4
x[50]:  undefined
x.p1:   test
x.p2:   3
x["m"]: 13

=== after undefining properties on parent ===
x.q:    1
x[3]:   undefined
x[4]:   16
x[50]:  42
x.p1:   undefined
x.p2:   3
x["m"]: 13

=== after re-adding property on parent ===
x.q:    1
x[3]:   undefined
x[4]:   16
x[50]:  42
x.p1:   new p1
x.p2:   3
x["m"]: 13

=== after re-defining property on object ===
x.q:    1
x[3]:   undefined
x[4]:   16
x[50]:  42
x.p1:   x's p1
x.p2:   3
x["m"]: 13