[lua] no loop to break

[Simn]

I don't know how to reproduce this yet, but on a coroutine branch I'm seeing this error on lua. Here's a stripped down version of the relevant output:

        while (true) do 
            _hx_continuation._hx_hoisted15828 = function(i,_hx_completion) 
              local _hx_status, _hx_result = pcall(function() 
                  while (true) do 
                    local _hx_continuation = _hx_continuation1._hx_state;
                    if (_hx_continuation) == 1 then 
                    elseif (_hx_continuation) == 2 then 
                    _G.error("_hx_pcall_break", 0); end;
                  end;
                return _hx_pcall_default
              end)
              if not _hx_status and _hx_result == "_hx_pcall_break" then
                break

I think it incorrectly thinks we want to break out of the outer loop, while we actually want to break out of the inner one.