The "break" keyword is incorrectly parsed as valid outside of a loop body

[JohnnyMorganz]

In full_moon, the following code snippet is parsed as valid:

if foo then
    break
end

function foo(bar)
    break
end

break

However, in all these situations, the break keyword cannot be used like this - it can only be used inside of a Loop body

[JohnnyMorganz]

Was looking at this - this is more of a semantic issue rather than a syntactic one. Is this more suited to be handled by a downstream consumer, such as a tool like selene?

That said, luaparse does handle something like this - https://github.com/fstirlitz/luaparse/blob/d61c6fe1cd2757bc210898bc9b263ffe4adbd060/luaparse.js#L1818 but thats because it holds more state such as control flow information (because it provides info such as scope etc.)
Luau (roblox studio) raises this as a syntax error

[Kampfkarren]

I believe Lua raises a syntax error as well, which we want to match.