[RyanZAG]

Not likely - these kind of bugs are generally fixed when found, or remain hidden simply because that part of the language is very rarely used. You'll likely see this bug in Chrome fixed within a few months.

I was commenting more on the practical effects of having an evolved language - this is a known and likely outcome in an evolved language. Designed languages generally spend a lot of time trying to avoid these kind of issues - it makes sense that not spending that time and adding in features as they are thought up means issues like this will creep in somewhere.

[pcwalton]

The only language features at play here are closures and garbage collection. Pick your favorite "designed" language: if it has those two features, an implementation of that language could have this bug.