[AGS4 compiler] Possibility to redeclare a variable inside a loop

[Monsieur OUXX]

The AGS4 compiler allows this:

Code: ags

int x=0; // declare outside loop
while(x!=1) {
  int x=0; // declare again inside loop, with same name
  x=1;
}

I cannot say for sure if the example above will loop infinitely because I don't remember the exact piece of code that made me notice the issue, but I definitely got indices mistakes caused by the fact that the inner variable was silently taking the spot of the outer variable with the same name.

I'm not sure what's allowed and not allowed in terms of re-declaring variables in inner blocks. I'm just reporting it in case it's an oversight.

[Crimson Wizard]

This is intended behavior, corresponding to a standard behavior of all the C-like languages (and maybe many others), where a local variable inside a block overrides a variable of same name outside of a block.

Similarly, it should be possible to have local variables, overriding global variables of the same name.