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It would be cool if you could use break with do ... end for some sort of "safe goto"

Example:

do
break
local x = "you'll never see me"
print(x)
end
print("something")

Would print "something"

In 5.2+ we have this:

goto x
local x = ""
::x::
print("something")

But it errors instead of doing the scoping stuff you can do with do ... end

(This is probably not something for lua 5 but for lua 6 if/when we get it... it would probably be less harmful to change goto so that it does an implicit do ... end scoping thingy)