Throw warning in Script-Editor on changing array you currently loop

[Reneator]

Godot version:
3.1.1

OS/device including version:
Windows 10

Issue description:
When i (accidentally) remove an element from the array im currently looping over in a for loop, it just breaks the loop.

Here imo it would be better to throw a warning in the editor. Especially for new-comers, as this is something you might tend to do when you are not that experienced.
The breaking of the loop for a new-comer is just behaviour that is hardly visible and difficult to find out without Debugging.

I know its a No-No in Programming to do that, but nothing is preventing you here from doing so.

Steps to reproduce:
Make array with elements
iterate over array,
delete element from array while looping

[Anutrix]

I wonder if someone can implement something like ConcurrentModificationException for GDScript

[Reneator]

@Anutrix Do you mean a compiler-exception or runtime-exception?

[Calinou]

Duplicate of #32261 (same cause).

[Anutrix]

@Anutrix Do you mean a compiler-exception or runtime-exception?

Both or either.