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kotlinlang

I did see one issue with scripting, but I’m sure it is pre-existing:

Line 1:
```
val x = 10
```

Line 2:
```
println(x)
val x = 20
println(x)
```

outputs:
```
0
20
```

obviously because the scope of the variable assignment is for the whole script and therefore its default int value of 0 is seen before the assignment.  Not sure if this will bite people later, but really the first println in `Line_2` should reach back into `Line_1.x` and instead is `this.x`