Label statement moveable

[Brendan Eich]

Bob Myers wrote:
> Can we also get goto statements?

No, although an out-of-shipping-date Opera engine supported them.

> Also, if we going to do gotos, then please implement computed GOTO. 
> FORTRAN has had that already for like 50 years.

Sorry, JS is not Fortran. Goto considered harmful, Dijkstra said -- plus 
naive Java verifier complexity is O(n^4) without extra stack/typemaps, 
due to goto.

G-O-T-O in JS is spelled "Proper Tail Calls" and is in ES6.

/be